a reference to sex. Something to say during sex.
I want to quack during sex.
by LinkinParkBabeoX March 23, 2005
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In poker parlance:

1) A deuce/two.
2) Two of something -- usually an amount of a bet.
"Quack quack!" -- Paul Magriel, announcing a bet of $22,000.
by Versatile Agent Zero! November 7, 2006
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not cool, messed up, corrupt, unrad, lame, busted
"Yo, Adam, that kid with the busted trapper keeper is grippa quack
by k-money May 6, 2005
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your being a quack
by deez nuts in your input August 3, 2021
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1. One who is of methamphetamine addiction.
2. Someone who is really fuckin weird
1. Don't get near that fool, he's a quack.
2. He bought doughnuts for his cat, what a fuckin quack.
by Iron-man_matthew April 10, 2008
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