yack ( synonym found)
Definition of yack:

°chatter.
°a variant of yak.
°(slang) to vomit, usually because of intoxication.
°(colloquial) to talk incessantly.
Definition of yack:

°chatter.
°a variant of yak.
°(slang) to vomit, usually because of intoxication.
°(colloquial) to talk incessantly.
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