Yack is a 4 letter English word. It's valid Scrabble word worth 13 points. It's valid Words with friends word worth 13 points.
You can make 21 anagrams from letters in yack (acky).
An Americanism dating back to 1945-50; apparently of expressive orig.
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.
yack, he picks up the trail from here to where you can follow easy.
This latter name accords with Macgillivray's mode of spelling its note, yack chuck, harsh enough, no one will deny.
Tom perceived Andrew's useless emulation, and with a sound translated by 'yack,' sent his leg out a long way.
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