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1. For an unexplainable popage of a boner when looking at guys, after having an untarnished heterosexual reputation.

2. An excuse to cover up your gayness
Steve and Carl are about to get into the shower after a workout.

Steve: I really blasted my quads today man.

Carl: Those are nice....really nice.

Steve: Hey do you have a boner right now?!

Carl:(turning around) No! I have uh...erectile dementia.

Steve: Sure faggot
by Pearljammers August 08, 2009
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