a female who is attacking one male via sucking with the mouth and/or tongue and using such force equivalent to that of a weapon. on the following day the aforementioned man attacked will find bruises, and in serious cases, scrapes around the area of attack that one might mistake for a punch in the neck.
had that waitress from Denny's over last night. she was a real fistmouth.
by fistmouthslayer March 23, 2010

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