What is M.u.k.?
1.
Motherfuckin Useless Kid
that guy that when you see him your like "what a piece of shit", and when you see him you have to yell "M.U.K.!" but in a way that sounds like your throwing up
also that guy that no one wants to talk to or be around and that gets bricks thrown through his car window
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Random Words:
1.
Newgrounds official "Token Black Guy." He is invited to all the parties and has a way with the women. Most people correct hi..