Territory handshake
n.— «In the film Australia, being filmed at Darwin’s Stokes Hill Wharf, screen veteran Bill Hunter’s character welcomes Nicole Kidman’s English aristocrat to the Territory with a pat on the bum. The cheeky pat, dubbed the Territory handshake by an onlooker, has become part of the on-set talk. While calling the actors through their moves Luhrmann has now taken to calling out “Territory handshake” to cue the bum grab» —“Nicole gets the NT handshake” Herald Sun (Melbourne, Australia) July 5, 2007. (source: Double-Tongued Dictionary)