Sexual act in which a man receives a very involved blow job mimicking the act of playing the bagpipes. The giver uses one hand to massage the balls and the other to stimulate the prostate. It is said to be a favorite Scotsmen young and old.
Angus was in a foul mood when he went down to the pub, but after a couple of pints and a Glasgow Bagpiper he felt like a new man.
When a guy eats a girl's brown button with his tongue and, simultaneously, fingers and squeezes her labia together like a bagpipe; a rusty trombone that is performed on women.