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Unk is a slang term for uncle in Australia, usually you say it to a friend in greeting. ‘Bad unk’ refers to a term used when someone isn’t afraid to do something that is outside of the box in order to impress the boys
Quinny - “hey lads, put through $500 in the pokes last night”

A few of the boys - “Quinny you bad unk”

*whilst smiling the boys get around his efforts*
by Bad unk March 31, 2019
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1. The sound a large piece of feces makes when it hits the water in a toilet bowl.
2. A large lump of feces.
Person 1: Why were you in the bathroom so long?
Person 2: I just badunked.

by Scott Fincher October 05, 2005
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any one's butt normly focest tourds a female
look at that ladys badunk
by kae May 07, 2005
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An expression made after achieveing a goal such as making a shot in hoopty-ball, powning some n00bs in halo, or any other thing you have achieved and you think everyone in the room should know about.
1.Dude did you see that Headshot?! Badunk baby!!
2. Yo J-balla check this trey ball, Badunk my nigga!
by Zach Ertel January 27, 2008
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to injure oneself or someone else
can also be used as a way of describing a drunken feeling
I badunked myself on the counter
I am really f***ing badunkacrunkled right now, but give me another shot
by yo yo March 22, 2004
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