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A Sean Beaner is a term used to define the erection that a heterosexual man gets while watching Sean Bean act. It is perfectly normal for a man to get one and is brought on by a combination of Sean Bean's rugged handsomeness and his extremely unique method of acting.
Dude, I'm totally straight, but I had such a Sean Beaner while watching Game of Thrones last night.
by BadassBean December 09, 2011