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A person prone to using obsceneties, prophanities, and socially unacceptable language. Usually used out of habbit and without control or conviction.
Person 1: That person was dropp'n F-bombs and the like. What do you call a person like that?

Person 2: You would call them a "Cusser".

Person 1: I guess that makes you a "Name Caller."
by James Gordon July 30, 2004
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