kayo

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

Entries linking to kayo

also knock-out, in fighting, 1887, from verbal phrase knock out "to stun by a blow for a 10-count" in boxing, short for to knock out of time; see knock (v.) + out (adv.). Slang meaning "excellent thing or person" is from 1892; specifically "beautiful woman" by 1953. As an adjective from 1896 in the tournament competition sense, 1898 in fighting. To knock oneself out "make a great effort" is from 1936.

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Definitions of kayo

kayo (v.)

knock unconscious or senseless;

Synonyms: knock cold / knock out

kayo (n.)

a blow that renders the opponent unconscious;

Synonyms: knockout / ko

From wordnet.princeton.edu

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