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1.
Excruciatingly dull human being with the power to suck the fun out of any conversation. Usually manifest in self-interested tossers.

Etymology:
-Banter: To have good, wholegrain chat which sets you up for the day like Readybrek.
-Antagonist: Competitor, opponent, rival.
It's a shame mate, Stacey's real hot but a complete bantagonist. Maybe I'll have better luck with her Mom.
by EddieFB November 17, 2006