Top Definition
To vigorously jerk off a man using a preferably searing Philly cheese steak, and when he's about to put some 'mayo' on that sandwich, the giving party punches him as hard as possible in the scrotum, causing the process to be prolonged as long as possible.
"Yo man I paid this whore a half ounce of crack and she gave me a Philadelphia Filibuster that lasted 4 hours, I'm amazed my balls didn't explode, though i don't know if I'll ever get back my foreskin that burnt off."
by GO BILLY! October 08, 2013

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