The act of masturbating so hard that you throw up.
Guy1: I was whackin it so hard last night i puked.

Guy 2: oh you whack and yacked?
by spud the potatoe February 20, 2016
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false imagined situation to relate to any example.
1. thats some gas, out the yack. 2. cant fuck with them hos, out the yack.
by lukrazy March 17, 2021
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A word that is used to replace "whack" "jacked" "tack" and really any other word that has the ending of "-ack"
"bro thats YACK"

"yo whats happening bro? yackin' around?"
by ScreechingLOL2343 August 04, 2018
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Code word that

you got thatgood good” aka WEED
Inhalation from blunt letting the weed enter your system and become immortal-yack
by BryBry15 July 19, 2019
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Yack is a word that doesn’t mean anything, but can mean anything
I just hit a yack! (Homerun)
by xXGingaNinjaXx December 07, 2018
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The inane and sensless chatter of any two sports announcers during televised sporting events in an effort to avoid dead air.
John Madden,Dick Vitale and any other "rabid" color commentators spouting incessent yack and babble sports trivia, in an effort to avoid dead air.
by Katzgalore October 02, 2013
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