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1.
A prank played on someone whom passes out with their pants half-way down. A second person proceeds to slap a piece of white-american cheese on their ass-crack, then pull up their pants. The resulting heat melts the cheese and creates a philly cheese sandwich in their pants. The term "Hand Shake" coming from the motion of applying said cheese.
Jose` was passed out after drinking one night and being a dick to his wife. To get back at him, she slapped on a Philly Hand Shake. Yummy.
by wussm0nster September 17, 2010
 
2.
Receiving a hand job while in Philadelphia where the woman simply holds on to the shaft of your dick.
I went home with this girl when i was in philly. It sucked all i got was a philly handshake.
by tex spade May 03, 2010