Top Definition
A mobile app college kids use to anonymously talk shit and post witty things to people nearby.
Some frat bro is talking mad shit on Yik Yak.
by oolytoolypey September 05, 2014
A app avalible to college students to talk anonymously to people in their area or make anonymous comments to get votes. If a "yak" gets five down votes its deleted because its considered offensive.
Did you see what those guys were saying on yikyak earlier?
by Miss Scarlet January 12, 2015
A social media app where you're completely anonymous and can chat with people in your area. Usually it's used by teens for bitching about people at school, spreading gossip, and the occasional stalker talking about how hot so-and-so was that day. Because the app has rules against naming people, you'l often see pitiful attempts to cheat this by listing the persons initials when the shit talking starts.
Guy 1: "Damn, did anybody else see M.F's ass today in the hallway? I got like so hard. Too bad she's dating that faggot T.B"
Guy 2: "Wat"
Guy 3: "Dude, stfu. You're gonna get Yik Yak banned from our campus!"
by Mr. bIG D August 27, 2015
vomit (from the thai)
child vomits

Old Man: "Yik yak!"
by PhyllisDean August 06, 2009
a girls junk
that girls yikyak tasted funny last night
by Bob The Builder7211 March 06, 2011

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