verb. to swiftly shove your thumb up someone's ass while said person is still clothed. a variation of a wedgie.
by Jenn December 28, 2003
Get the buttdartmug. by Nitemare January 18, 2003
Get the buttdartmug. by nik & aaron January 18, 2003
Get the buttdartmug. A fucking annoying ass biker who is slowing traffic and getting in the way of people trying to get places besides Trader Joe's to buy granola
by Allah Albar77 July 8, 2017
Get the Buttdartsmug. by Hoyt of The Ledge May 10, 2006
Get the buttdartsmug. To engage in a painstaking game of dartz on someones ass. A total douschebag who screems random shit at the top of his lungs.
by Dono January 29, 2005
Get the Buttdartmug.