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1.
A stank weasel is a low bellied cowardice person. Often time a stank weasel exhibits rat fink type behavior.
Man that dude is such a stank weasel, he totally moved in on my best mates girl while he was outta commission with the flu
by Charlie T. Brown February 10, 2009
 
2.
a form of beatin someone ass (usually associated with video gamers)
hit it wit yer stank weasel.
by codycorrel August 11, 2006