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A girl you would fuck but not want your friends to know about.

Yo u think shes hot?

Nah dude but shes definitely a Stealther
by Shitson69 April 29, 2008
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A slang term used in some communities to describe a man who states that he will use a condom during penetrative sex but tries to take it off without their partner knowing.
Alex: So, you gonna see Richard again?
Sam: F*** no, that guy's a stealther, no respect for anyone.
by SympatheticCynic June 12, 2018
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