verb (used without object), noun Slang.
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OTHER WORDS FROM yackyacker, noun
Words nearby yack
Example sentences from the Web for yack
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.The Slang Dictionary|John Camden Hotten
This latter name accords with Macgillivray's mode of spelling its note, yack chuck, harsh enough, no one will deny.British Birds in their Haunts|Rev. C. A. Johns
Tom perceived Andrew's useless emulation, and with a sound translated by 'yack,' sent his leg out a long way.Evan Harrington, Complete|George Meredith
Yack, he picks up the trail from here to where you can follow easy.The Quirt|B.M. Bower