Mandurah Handshake

A common practice in Mandurah, Western Australia, in which you punch someone in the back of the skull as hard as you can, often putting them in hospital.

1. "Oi bro, you shoulda seen me give this random bloke the Mandurah Handshake last night at toucan."

2. "I've gotta go to court today over that Mandurah Handshake incident last weekend, I hope my Centrelink benefits don't get cut off"