An aquatic bird that, in medieval times, was used to find out if a person was a witch or not.

This stems from the very logical idea that if a person weighs the same as a duck, then that person is made of wood (because both ducks and wood float in water). And since wood burns (just like witches) then that person must be a witch, because witches are made of wood.

Therefore, the accused person(s) would be placed on a scale next to a duck, and if they balanced, the person(s) would be burned.
So, if she weighs the same as a duck, then she's made of wood. And therefore... A WITCH!
by Flint October 27, 2003
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We found a witch! May we burn her?
A witch? How do you know she's a witch?
She turned me into a newt!
A newt..?
I got better..
There is a simple way to figure out if she is a witch or not.
Witches burn, and what else burns?
Wood!
Yes, and wood floats. What else floats?
... A duck?
Yes! So if this woman weighs as much as a duck, than she is a witch!
by WhiteyLights July 15, 2005
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What floats on water and weighs the same as a witch.
When asked by Sir Benomir, what also floats, King Authur exclaimed "A duck".
by Cosmicstargoat January 30, 2004
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An insurance salesperson who is continually frustrated by humans who refuse to listen.
by Cosmicstargoat June 05, 2004
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What looks like a duck, swims like a duck, and quacks like a duck, is a duck (probably).
Where duck is used as a metaphor for something usually totally unrelated to ducks.
"Hey, is that guy a republican?"
"Well, if it looks like a duck, swims like a duck, and quacks like a duck, it's probably a duck."
by gothfae May 02, 2004
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In the sport of cricket, when a batsman is out without scoring any runs (points).

Also:
Golden Duck - when a batsman is out after only facing one ball

Royal Duck - when a batsman is dismissed by the first ball of the innings
"I didn't score any runs, I got a duck"
by Corps October 15, 2004
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1. Noun. The animal of the bird variety, difficult to ctch without help. Tastiest variety is the mallard.

2. A collective noun reffering to a group that occurs when an indivdual moongoose meets one or more of its kind.(Having researched all possibilities this seems by far the most logical)
1. He's a one armed duck fucker (see dumbland)

2. Look over there! There's some a duck.
by Draz'Andant July 15, 2003
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