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1. Using your hoopdie to forcefully ram your hated foe into the intersection during a red light.

2. An epic rear-end collision, accidental or intentional.
(1.) Passenger: "Dude, that guy totally cut you off!"
Driver: "Looks like someone needs a good bumper fuck."

(2.) 911: "911 state your emergency."
You: "I just got bumper fucked by some drunken asshole! And he's dressed like a pirate."
911: "Excuse me...?"
by Coop da Thurb January 23, 2009
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