zonk out
C1/C2Informal, colloquial, slang
Definition
Meaning
To fall asleep deeply or suddenly, especially from exhaustion.
To become completely unconscious, unresponsive, or mentally absent due to fatigue, intoxication, or boredom. Can also describe a device or system shutting down completely.
Linguistics
Semantic Notes
Implies a sudden or complete loss of consciousness/alertness, often with a sense of being overwhelmed or depleted. Has a slightly humorous or self-deprecating tone.
Dialectal Variation
British vs American Usage
Differences
More common in American English; understood but less frequent in British English, where alternatives like 'kip out' or 'crash out' might be used.
Connotations
Both varieties perceive it as casual and slightly humorous. In the UK, it may sound more distinctly American.
Frequency
Moderate frequency in AmE, low frequency in BrE.
Vocabulary
Collocations
Grammar
Valency Patterns
Subject + zonk outSubject + zonk out + adverbial (place/time)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “zonk out cold”
Usage
Context Usage
Business
Not used in formal contexts. Might be used humorously in informal office chat: 'After that marathon meeting, I just zonked out at my desk.'
Academic
Highly inappropriate.
Everyday
Common in casual conversation among friends and family to describe exhaustion.
Technical
Not used.
Examples
By Part of Speech
verb
British English
- I'm going to zonk out on the settee after this long shift.
- He zonked out during the film, it was so dull.
American English
- I'm gonna zonk out on the couch after this long shift.
- He zonked out during the movie, it was so boring.
adverb
British English
- N/A (phrasal verb, not used as adverb)
American English
- N/A (phrasal verb, not used as adverb)
adjective
British English
- N/A (phrasal verb, not used as adjective)
American English
- N/A (phrasal verb, not used as adjective)
Examples
By CEFR Level
- He was very tired and zonked out.
- The baby zonked out after playing.
- I plan to just zonk out as soon as I get home.
- After the long flight, she zonked out for twelve hours.
- I was so exhausted from the hike that I zonked out fully dressed on top of the bed.
- The medication made him zonk out within minutes.
- After pulling three all-nighters in a row, his body finally gave out and he zonked out at his workstation.
- The repetitive drone of the lecture caused half the class to zonk out.
Learning
Memory Aids
Mnemonic
Think of a cartoon character being hit on the head with a 'ZONK!' sound effect and falling asleep immediately.
Conceptual Metaphor
CONSCIOUSNESS IS A MACHINE/POWER SOURCE (that suddenly runs out of energy or shuts down).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation like 'зонковать'. The concept is близко to 'вырубиться' or 'отключиться' from tiredness.
Common Mistakes
- Using it in formal writing. Incorrectly conjugating as 'zonked out' (past) or 'zonking out' (continuous) is fine; the mistake would be 'zonk outed'. Using it to mean simple, light sleep instead of deep, sudden sleep.
Practice
Quiz
In which situation is it LEAST appropriate to use 'zonk out'?
FAQ
Frequently Asked Questions
Primarily, yes, but it can extend to mean becoming completely unconscious or mentally absent for any reason, e.g., from boredom or medication.
Yes, the standard past tense and past participle is 'zonked out' (e.g., 'I zonked out on the sofa last night').
It's informal and can be slightly humorous, but it's not inherently rude. Tone and context matter. It's fine among friends.
'Pass out' can imply a more sudden, involuntary loss of consciousness, sometimes from illness or alcohol. 'Zonk out' more specifically and humorously suggests falling asleep from sheer tiredness.