yakk

Verb

yak (third-person singular simple present yaks, present participle yakking, simple past and past participle yakked)

1. (intransitive, slang) To talk, particularly informally but persistently; to chatter or prattle.
   • “You'll like Poppet. Nice dog. Wears his ears inside out. Why do dachshunds wear their ears inside out?” “I could not say, sir.” “Nor me. I've often wondered. But this won't do, Jeeves. Here we are, yakking about Jezebels and dachshunds, when we ought to be concentrating our minds […]1960, P[elham] G[renville] Wodehouse, chapter XI, in Jeeves in the Offing, London: Herbert Jenkins, →OCLC
2. (intransitive, slang) To vomit, usually as a result of excessive alcohol consumption.
   • She'll feel better when she yaks.1998, Tim Herlihy, The Wedding Singer, spoken by Glenn Guglia (Matthew Glave)

See all 10 meanings of yak