The sound a Jesquigoduckster makes.
"QUACKKKKKKKKK"
by affraid_of_quack January 29, 2009
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An annoying friend who always seems to bring up stupid points and goes on and on about them.

A person who if they were talking on on a SNL skit, the people would laugh at even though he wasn't trying to funny, he's points are just stupid.
"Oh hey guys, I was drawing a circle today and...(30 minutes later) pretty cool huh"
by Pat November 3, 2004
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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 5, 2006
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A pseudomedical "professional" who earnestly believes in their products or procedures (as opposed to a fraud, who knows he is full of shit and just wants to make money), which in actuality are of dubious merit and are possibly injurious.
(Name) the quack (my chiropractor)
Was a squat little ape
With a mouse's voice
And a pigeon's gait
by Anon343 March 16, 2008
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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 19, 2008
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1. To loudly and aggressively express one's displeasure and offense at a deliberately misunderstood position held by someone else.
2. To misconstrue someone's words as a personal attack, and complain about it loudly.
3. To loudly proclaim how one is always the victim.
A: "You look better in blue"
B: "You're just out to get me!"
A: "Stop Quacking!"
by NotAMonkey April 15, 2008
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an ambiguous verb that can be used in reference to literally anything. Some examples are dying, falling, making a mistake, missing a scoring opportunity in football, etc.
Dude, totally quacked.

He's quacked.
by ykdrummer91 April 17, 2010
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