Top Definition
1: A rodent that is slippery.

2: When lubricating a weasel or other rodent and letting it run wild at another person's asshole while they are blindfolded.
1: That rat is such a greasy weasel.

2: I tied her up and let my ferret Sanchez give her a greasy weasel.
by Roy Sanchez August 08, 2006
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