Typically done within groups of "friends" who basically take turns with the same group of guys, referred to as bros.
Doing the Bridgman may cause:
Loss of clothing
Loss of virginity
Loss of "friends"
Loss of self respect
Loss of good reputation
Sexually transmitted diseases
Doing the Bridgman may also expose you to:
A criminal record
Guys who graduated 5 years ago but have no lives because they work at Pizza Hut and still think they're "The Man."
Girl 2: I don't know.. You?
Girl 1: I feel like Bridgmaning tonight.
Girl 3: I always knew you were one of us. Yay (fake) friends!
Girl 2: *tear* I want to be a whore too!