Swiss Handshake Share definition Flag The act of swiping your butt crack after you have farted or taken a shit and wiping it on someone's face. Hey, Marty, I just gave that guy a Swiss Handshake. Swiss Handshake by B.C. Jimmy August 7, 2010 0 0 Get merch Get the Swiss Handshake mug. Buy Now — $32.95 See more merch