quack 

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.

quack by Versatile Agent Zero! November 7, 2006

Quack 

to bust a nut or "skeet"

"Dude i totally quacked before she even touched me!"

Quack by WayniakDaManiak August 6, 2009

quack 

not cool, messed up, corrupt, unrad, lame, busted

"Yo, Adam, that kid with the busted trapper keeper is grippa quack

quack by k-money May 6, 2005

Quack 

To talk rubbish or drive a point home unecessarily

Stop quacking about it! (to someone who for example goes on and on boringly)

Quack by Greg September 16, 2003

quack 

an acknowledgement towards something most favorable

I want quack to get in my pants.

quack by Matt January 19, 2004

Quack 

A name given to a sussy impostor.

Quack is so weird

Quack by A1exTheAmbivert May 5, 2021

quack 

awesome guy who plays roblox

your being a quack

quack by deez nuts in your input August 2, 2021