konk

Verb (1)

conk (third-person singular simple present conks, present participle conking, simple past and past participle conked)

1. (slang) To hit, especially on the head.
   • She came skipping to me just now, clapping her little hands and bleating about how very, very happy she was, dear Mrs Travers. The silly young geezer. I nearly conked her one with my trowel. I'd always thought her half-baked, but now I think they didn't even put her in the oven.1960, P[elham] G[renville] Wodehouse, chapter XVII, in Jeeves in the Offing, London: Herbert Jenkins, →OCLC

Verb (2)

conk (third-person singular simple present conks, present participle conking, simple past and past participle conked)

1. (US, dated) To chemically straighten tightly curled hair.
   • The barbecue cook, wearing a dirty white apron, his conked hair reddish and metallic in the pale sun, and a cigarette between his lips, stood in the doorway, watching them.1957, James Baldwin, “Sonny’s Blues”, in Going to Meet the Man, Dial, published 1965

Verb (3)

conk (third-person singular simple present conks, present participle conking, simple past and past participle conked)

1. (colloquial, often) To fail or show signs of failing, cease operating, break down.
   • Therefore, have two or more engines, so that there is still some power left if one engine conks.1921, Australian Aero Clubs, Sea, Land and Air, volume 3, page 310
2. (colloquial, often) To become unconscious.

See all 7 meanings of conk