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To freak out; be outta control; have an un-slowed roll; be utterly and ridiculously shameful without regard for anything; lacking dignity
Dude, your a total quance!

Stop quancing man, just slow your roll.

Holy quance!
by Laboeuf April 03, 2009
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2
Quance is a nother name for shiest which is also known for a rip off usually in a drug deal
Ricky C Quanced me on that sack of dank
by Dave October 13, 2004
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