Definitions by gothfae

A duck! 

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."

A duck! by gothfae May 2, 2004