Scottish slang for playing the bagpipes.
Possible Local Usage: "So there I wiz, chompin doon on ma deep fried mars bar an chips when some tube started shaggin the haggis and pit me right oaf."
Translation: "I was in the process of eating ones supper when a stranger began playing the bagpipes which made me lose my appetite."
Local Usage: "Ho, haggis shagger, gonna play Stairway man? Ho ho..."
Translation: "I say, bagpiper, would you care to attempt to play a tune not written for your instrument and subsequently have a heart attack for the amusement of me and my chums?"
Local Usage: "Jim, shag the haggis for us."
Translation: "James my good man, play the pipes would you."