English Reference

Phrasal verb

conk out

Definitions

01machine failure

B2

phr.v. to stop working suddenly, usually because of a mechanical or electrical problem.

phr.v. to cease functioning or break down abruptly. The verb is intransitive and typically refers to engines, appliances, or electronic devices.

“My old laptop finally conked out right in the middle of my presentation.”

“The generator conked out during the storm, leaving the entire research facility without power for nearly six hours.”

Informal

Usage

This phrasal verb is intransitive and does not take a direct object.

02falling asleep

B2

phr.v. to fall asleep very quickly, especially when you are extremely tired.

phr.v. to fall fast asleep or lose consciousness suddenly due to physical exhaustion.

“As soon as his head hit the pillow, he conked out for ten hours.”

“After hiking twenty miles through the mountains, the entire group conked out before the sun had even set.”

Informal

Teaching tip

While 'pass out' often implies fainting or alcohol, 'conk out' usually implies healthy, deep sleep from being tired.

Synonyms

crashpass outnod off

Antonyms

03to die

C1

phr.v. a very informal and sometimes disrespectful way to say someone has died.

phr.v. to expire or pass away. This sense is highly informal and carries a blunt, sometimes irreverent tone that may be inappropriate in sensitive contexts.

“The old cat finally conked out at the age of eighteen.”

“He joked that he wanted to conk out while doing something he loved rather than in a hospital bed.”

Informal · Slang

Teaching tip

Advise learners to avoid this sense in formal or sympathetic situations, as it can sound cold or overly casual regarding death.

Teaching tip

this is a great example of an onomatopoeic phrasal verb where the sound 'conk' suggests a sudden mechanical stop or a blow to the head.

Etymology

Possibly an onomatopoeic imitation of the sound of a stalling internal combustion engine. Possibly coined by British motorcyclists circa 1910.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Phrasal verb

Particles

out

Separability

inseparable

Pattern

conk + out

Synonyms

Antonyms

start upwake up

Grammar

This entry

Level
C1 · Advanced
Updated

Scan code

englishreference.com/q/conk-out

English Reference