south boston handshake
The act of giving and/or receiving a kick in the groin before having lit firecracker thrown down your pants by a guy probably named "Shawn" wearing a Bruins jersey who runs off with his skullcrushers brown bag yelling "GO SOX!".
"I got a South Boston Handshake. Mangled my downstairs up like a chicken pot pie."
"So....good trip to Beantown?"
"So....good trip to Beantown?"