Any worthless induvidual who tries to steal credit for someone else's work; also someone who tries to pass blame on others.
J.T. erwin is a fucking crap weasel; he got a letter jacket for being towel boy on the basketball team.
Used in TV sitcom, Friends, as Ross describes Paolo.
Ross: "Do you know the word crap weasel?"
Paolo ~ Shakes head ~
Ross : "You.., are a crap weasel"