Rusty Handshake
Its where you shit in your hand. Then shake your mates hand.
Mate: Hayy sup m8
You: Hi would u like a handshake?
Mate: Sure
You: *shakes hand*
Mate: Oi mate i do believe u just gave me a rusty handshake
You: Hi would u like a handshake?
Mate: Sure
You: *shakes hand*
Mate: Oi mate i do believe u just gave me a rusty handshake