kayo

[key-oh, key-oh; v. key-oh] /ˈkeɪˈoʊ, ˈkeɪˌoʊ; v. ˈkeɪˈoʊ/
noun, plural kayos, verb, kayoed, kayoing.
1.
KO.
Origin
1920-25, Americanism
British Dictionary definitions for kayo

kayo

/ˈkeɪˈəʊ/
noun (pl) kayos
1.
(boxing) another term for knockout
verb kayoes, kayos, kayoing, kayoed
2.
(boxing) another term for knock out See knockout
Word Origin
C20: from the initial letters of knock out
Word Origin and History for kayo

spelled-out form of K.O. (knockout), from 1923. Also used in 1920s as a slang reversal of OK.

Slang definitions & phrases for kayo

kayo

noun

A knockout; ko (1923+ Prizefight)