Top Definition
A fake tough guy. One who runs their mouth but is not prepared to back it up.
In the film 'Goodfellas', Tommy calls Billy a "fake tough guy" during their late night club confrontation. (Go get your fucking shinebox!) This was the genesis of my term, which I've been using since. Billy Batts was a "fuff guy".
by Russ Malcolm June 13, 2007

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