verb (used without object) Slang.
Origin of conk2
British Dictionary definitions for conk out (1 of 2)
verb (intr, adverb) informal
Word Origin for conk out
British Dictionary definitions for conk out (2 of 2)
Word Origin for conk
Word Origin and History for conk out
as in conk out, 1918, coined by World War I airmen, perhaps in imitation of the sound of a stalling motor, reinforced by conk (v.) "hit on the head," originally "punch in the nose" (1821), from conk (n.), slang for "nose" (1812), perhaps from fancied resemblance to a conch (pronounced "conk") shell.
Idioms and Phrases with conk out
Stop functioning, fail, as in The engine finally conked out. [Colloquial; early 1900s]
Fall asleep, as in Every evening he conked out in front of the television set. [1940s]
Faint or collapse, as in I don't know if it was the heat, but she suddenly conked out. [1920s]
Die, as in He's paranoid about conking out and he's only twenty! [Late 1920s]