22
Quacking in the manner of a mallard is what one should do when faced with any ridiculous and unneccessary comment from any idiot in any social situation. It is commonly used by me as a term of derision and contempt.
Idiot: Wow! Did anyone catch that episode of Dawsons last night. It was totally cool!

Me: Quack.
by imnothere27 February 03, 2010
Get the mug
Get a Quack mug for your dog James.
23
Flatulence released from the anal cavity, which is powerful enough to project fecal matter at dangerous velocity onto the flatulator's undergarments. A strong wet fart. Otherwise know as a shart, these noisy explosions tend to have a distinct "quack" sound when released past the sphincter.
(ex 1) Shit ran down my thigh as a result of a disastrous quack.

(ex 2) Tony accidentally quacked while trying to light his fart, in this situation a basic joke had become oh so dangerous.
by iLOVEtwat May 22, 2010
Get the mug
Get a Quack mug for your buddy Günter.
24
in very complicated chipmunk terminology this sound is often referred to as "sex" or even "fuck" in the mating season (12 Months a year).
"Damn woman you look fineee! we should Quack!"

"Why yes, a quick Quack is what i need right now."
by chipmonk182 September 04, 2011
Get the mug
Get a Quack mug for your mama Zora.
26
An online or e-slut who will often prey and stalk pre-pubescent teen boys via the internet.
Quack and nightfall cyber while playing WoW.
by Tom Bolton November 04, 2006
Get the mug
Get a quack mug for your cousin Zora.
27
To claim possession of something for when you return, such as a seat. Short hand for the phrase "quack quack I get my seat back"

Counter arguments include:
1. Move your feet, lose your seat
2. Cluck, cluck, I don't give a fuck!
Abby gets up from the couch and says, "Quack!"
Abby has 'quacked' her seat, thus no one else can take it.
by Savannah Cheyenne February 18, 2008
Get the mug
Get a quack mug for your father-in-law Abdul.