Synonyms for yack
EXAMPLES FROM THE WEB FOR YACK
Yack, he picks up the trail from here to where you can follow easy.
Church a yack (or watch), to take the works of a watch from its original case, and put them into another one, to avoid detection.
Tom perceived Andrew's useless emulation, and with a sound translated by 'yack,' sent his leg out a long way.
This latter name accords with Macgillivray's mode of spelling its note, yack chuck, harsh enough, no one will deny.