Phrasal verbs: the two-word engine of work English
Spoken professional English barely uses the verbs textbooks teach. Nobody "commences" a service or "investigates" a failure in standup; they spin it up and dig into it. These two-word verbs (a verb plus a particle like up, out, into, whose combined meaning often cannot be guessed from the parts) are called phrasal verbs, and they are simultaneously the most natural-sounding and the hardest-to-learn layer of the language. This chapter collects the ones engineering actually runs on, grouped by situation, each with a real example.
One register note up front: phrasal verbs are the informal-to-neutral register. In a formal doc, "roll back the deployment" is fine (many are technical terms now), but "we'll figure it out" might become "we will determine the approach." In speech and chat, the phrasal verb is almost always the right choice; Latinate substitutes sound stiff out loud.
Making things run
| Phrase | Meaning | Example |
|---|---|---|
| get X up and running | Bring to a working state | "Give me an hour to get the staging cluster up and running." |
| spin up | Start/create (an instance, environment, team) | "Spin up a sandbox and try it there." |
| stand up | Build and launch something new | "We stood up the metrics service in a week." |
| bring up / bring down | Start / stop a system | "Bring the replicas down one at a time." |
| tear down | Destroy an environment | "CI tears down the containers after each run." |
| set up | Configure, prepare | "I'll set up the repo and permissions today." |
| roll out / roll back | Release gradually / undo a release | "Roll out to 10%, watch, roll back if p99 moves." |
| back out | Withdraw a change | "Cleanest fix is backing out the config commit." |
| swap out / rip out | Replace / remove aggressively | "Swap out the JSON parser; rip out the dead flags." |
| wire up / hook up | Connect components | "The UI is done but not wired up to the API yet." |
| kick off | Start (a process, project, meeting) | "The build kicks off on every merge." |
| plug in | Integrate as a component | "The auth module plugs into the same middleware." |
Investigating and fixing
| Phrase | Meaning | Example |
|---|---|---|
| dig into | Investigate deeply | "I'll dig into the allocator behavior tomorrow." |
| look into | Investigate (lighter than dig) | "Can you look into the flaky login test?" |
| drill down | Move from summary to detail | "Drill down into the eu-west numbers." |
| track down / chase down | Find after effort | "Took all morning to track down the leaked handle." |
| narrow down | Reduce the candidate set | "Narrowed it down to two commits." |
| rule out | Eliminate a hypothesis | "The rollback ruled out the deploy as the cause." |
| run into | Encounter (a problem) | "We ran into a rate limit nobody documented." |
| come across | Find by chance | "I came across a TODO that explains everything." |
| figure out | Solve, understand | "Still figuring out why it only fails on Mondays." |
| work out / iron out / sort out | Resolve (details, kinks, a mess) | "The design is agreed; we're ironing out the API details." |
| nail down / pin down | Fix precisely | "Let's nail down the schema before writing clients." |
| flesh out | Add substance to a skeleton | "The doc needs the failure section fleshed out." |
| think through / walk through / step through | Reason carefully / present step by step / trace in a debugger | "Walk me through the request path; then we'll step through the failing case." |
| poke around | Explore casually | "I poked around the logs; nothing obvious." |
Workload and progress
| Phrase | Meaning | Example |
|---|---|---|
| pile up | Accumulate (work, messages, backlog) | "Reviews piled up while I was OOO." |
| back up | Queue building because draining stalled | "The DLQ is backing up; consumer must be down." |
| fall behind / catch up / keep up | Lose pace / recover / maintain | "We fell behind on upgrades; the intern week is our chance to catch up." |
| ramp up | Increase gradually; also onboard | "She's ramping up on the codebase; give it a sprint." |
| wind down | Decrease gradually toward stopping | "We're winding down the legacy API." |
| wrap up | Finish | "Wrapping up the migration today, demo Friday." |
| follow up | Return to a topic with action; (noun: follow-up) | "I'll follow up with the vendor and post their answer." |
| circle back | Return to a topic later | "Let's circle back after the launch." (Corporate-flavored; fine in moderation.) |
| push back | Resist; (also: postpone) | "Legal pushed back on the wording." / "Can we push the review back a day?" |
| hold off / put off | Delay deliberately / procrastinate-delay | "Hold off on merging until the freeze lifts." |
| carry over | Move to the next period | "Two stories carried over to this sprint." |
| hand off / take over | Transfer ownership / assume it | "I'll hand off on-call at 6; Ravi takes over." |
| pitch in / chip in | Contribute help | "Everyone pitched in on the backlog scrub." |
| step in / step up | Intervene / rise to responsibility | "Dana stepped in when the vendor stalled; Ken stepped up to own the runbook." |
| fill in | Substitute; (also: fill someone in = brief them) | "I'm filling in for Sam; fill me in on where things stand." |
| take on / take over / offload | Accept work / assume control / shed work | "I can take on the docs if someone offloads my triage duty." |
Meetings and speaking
| Phrase | Meaning | Example |
|---|---|---|
| speak up | Talk louder; also: voice your view | "Speak up if you disagree; silence gets read as consent." |
| bring up | Introduce a topic | "Glad you brought up licensing; that was on my list." |
| chime in / weigh in / jump in | Join lightly / with authority / interrupt to join | "Feel free to chime in; Priya, weigh in when you're back." |
| cut off / talk over | Interrupt someone / speak simultaneously | "Sorry, I cut you off; go ahead." |
| move on | Advance to the next topic | "We're at time on this one; moving on." |
| go over / run through | Review together | "Let's run through the checklist before the cut." |
| touch on | Mention briefly | "The doc touches on cost but doesn't model it." |
| zoom out / zoom in | Shift to big picture / to detail | "Zooming out: does this matter if the product pivots?" |
| call out | Highlight explicitly; also: publicly criticize | "Calling out that the date assumes no on-call load." (Watch the second sense; "calling you out" is confrontation.) |
| sign off (on) | Approve formally; also: leave for the day | "Dana signed off on the design." / "Signing off, back tomorrow." |
| reach out | Contact someone | "Reach out to the platform team before building around them." (Corporate-flavored but universal.) |
| get back to | Return with an answer later | "I'll get back to you by Thursday with numbers." |
| check in | Brief sync on status or wellbeing | "Quick check-in on the migration: still green?" |
On calls: the audio-trouble phrasebook
Video calls have their own tiny dialect, used identically everywhere:
- "You're breaking up." (audio arriving in fragments)
- "You cut out for a second; say the last part again?"
- "We lost you" / "you froze" (video or audio stopped)
- "Your audio is choppy / garbled / robotic."
- "You're on mute." (the most-said sentence of the decade; the polite self-recovery is "sorry, I was on mute: ...")
- "There's an echo; someone may have two clients open."
- "The lag is bad; let's turn cameras off and see if it helps."
- "I'll drop and rejoin; give me thirty seconds."
- "Can you hear me now?" / "Loud and clear."
- "You go ahead" (yielding after you both spoke at once), "after you", and if it loops: "go ahead, then me."
- "Bear with me while the screen share loads." ("bear", not "bare")
- "Hop on / jump on a call?" (propose moving from chat to voice), "dial in" (join, from telephone days), "drop off" (leave early: "I need to drop off at :45").
Responsibility idioms
Not strictly phrasal verbs, but the same spoken register, and the cluster you asked about "on the hook" belongs to:
- on the hook (for): accountable, with consequences if it fails: "I'm on the hook for the audit deadline." Off the hook: released from it.
- drop the ball: fail at something you owned: "I dropped the ball on the renewal; it's back on track now." (A clean self-ownership phrase, pairs with Chapter 10.)
- pick up the slack: absorb work someone else is not doing.
- pull your weight: contribute your fair share.
- throw someone under the bus: sacrifice a colleague to save yourself; the phrase exists so you can name (and refuse) the behavior: "I'm not throwing the vendor under the bus; our retry logic amplified it."
- pass the buck: push accountability elsewhere; "the buck stops here" claims final accountability.
- on / off my plate: in / out of my workload: "Q3 planning just landed on my plate." Related: "I don't have the bandwidth" (no spare capacity; slightly corporate but standard).
- in the loop / out of the loop: informed / not: "keep me in the loop on the vendor thread."
- up to speed: fully informed and able to contribute: "bring the new folks up to speed before the review."
- heads down: focusing, do not disturb. Swamped / snowed under / underwater: overloaded.
- in the weeds: two senses, context decides: lost in excessive detail ("we're in the weeds; zoom out") or, borrowed from restaurant slang, overwhelmed by work ("the on-call is in the weeds; who can assist?").
- down the rabbit hole: pulled into a deep, absorbing tangent: "I went down a rabbit hole on the allocator; fascinating, irrelevant."
Don't be confused: "off of" ("get off of the call", "based off of the prototype") is common in spoken American English and redundant in writing; edit it to "off" or the right preposition. In particular, "based off of" should be "based on" in anything formal. Similarly, spoken fillers like "out of pocket" have drifted: it traditionally means paying personally ("out-of-pocket costs") but is now widely used for "unavailable"; with a mixed audience, prefer "unavailable" and keep "out of pocket" for money.
Learning them for real
Phrasal verbs resist memorization because the particle logic is only half-consistent (up often means completion: wrap up, finish up; out often means resolution: iron out, sort out; but look up, look into, and look out share nothing). Three practical tactics: collect them from your own team's chat (the local dialect is maybe eighty verbs deep, not eight hundred); when you meet one, note what it replaces ("dig into" = investigate) so your passive vocabulary converts to active; and use the one-in-one-out rule in your own messages: each stiff Latinate verb you catch ("utilize", "commence", "endeavor") is a slot where a natural two-word verb belongs.
👉 The vocabulary is now complete: abbreviations, concepts, precise words, and the two-word engine. The book closes with quality control: the specific mistakes (dialect slips, register errors, hedging pathologies, structural failures) that undo good vocabulary, and the checklist that catches them before you press send. On to Chapter 16.