conk out
Proposed by a contributor, not yet supported by evidence.
Also seen as: konk out
Sense 1
Meaning · English
To fall fast asleep; to sleep soundly.
Register: informal
Where it’s used:
Used
American English
Examples
He wasn't there, just the dog, conked out on the porch.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
To stop functioning.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
To die.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “conk out” mean?
To fall fast asleep; to sleep soundly.
Is “conk out” formal or informal?
conk out is generally informal.