A "Rotten Scotsman" is acheived when a woman inserts her thumb into a man's anus,
squeezing and releasing his testicles with one hand, and sucking and strocking his penis with her mouth and other hand. The action gives
the look that she is
playing the bagpipes.
Last night when
Sue was giving me a blow job, all of sudden she shoved her
finger up my ass and sqeezed
my balls, all with the same hand. I asked her what the hell she was doing, and she said, "I'm giving you a Rotten Scotsman!"