English Reference

Phrasal verb

hack up

Definitions

01to cut into pieces

B2

phr.v. to cut something into many small pieces in a rough or violent way.

phr.v. to dismember or slice something into smaller parts using rough, forceful strokes.

“The gardener had to hack up the fallen tree branches to fit them in the bin.”

“The chef had to hack up the frozen carcass before it could be processed into smaller, manageable portions for the stew.”

Synonyms

chop updismembermangle

02to cough something out

B2 · Medicine

phr.v. to cough very hard to get something out of your throat or lungs.

phr.v. to eject phlegm or a foreign object from the respiratory tract through violent coughing.

“He spent the whole morning hacking up phlegm because of his heavy cold.”

“The patient was hacking up thick mucus, which suggested a significant respiratory infection that required immediate clinical attention.”

Informal

Synonyms

expectoratecough up

Antonyms

03to create quickly

C1 · Computing

phr.v. to make something, like a computer program or a plan, very quickly and without much care.

phr.v. to produce a piece of software or a physical prototype rapidly and often crudely.

“I managed to hack up a simple script to automate my emails over the weekend.”

“The developers had to hack up a temporary fix for the server crash while they worked on a more robust long-term solution.”

Informal · Technical

Usage

Often used with 'together' as in 'hack together', but 'hack up' is common in programming contexts.

Synonyms

Antonyms

Teaching tip

distinguish between the physical act of chopping and the medical context of coughing; the latter is often used with 'phlegm' or 'mucus' as an object.

Phrasal verb

Particles

up

Separability

optional

Pattern

hack + up + object

Synonyms

Antonyms

mendrepairbreathe easily

Grammar

This entry

Level
C1 · Advanced
Updated

Scan code

englishreference.com/q/hack-up

English Reference