A scottish handshake is a headbutt, derived from the steriotype of Scots being extreamly violent and would hedbutt you as a greeting.
James called Angus' wife a man, so Angus said "Stitch this!" and scottish handshaked him on the nose.
by Nicolas O'Brien September 02, 2006
a hand job
matt is such a slut. he gave him a scottish hand shake.
by jasonalex123 March 17, 2009