Semen discharged from an act of self-gratification, usually left to dribble over the thumb of the active hand.
I was in the bathroom after your mum took a shit, so I thought I'd use that time to fire off some knuckle-bastards.
by FormerSmurf April 7, 2015
Get the Knuckle-Bastardsmug. Fuck off Mike. Your mother sat on a pile of cum on a toilet seat at a barn party back in '92 which consequently produced you. You're just a filthy fap bastard.
by JamieB123 November 1, 2014
Get the Fap Bastardmug. by oddjobteabagger February 5, 2010
Get the cheeky bastardmug. by larstait November 3, 2003
Get the stupid bastardmug. by Daniel Mullica May 31, 2003
Get the dickless bastardmug. by nuivheovhlshv98 December 29, 2005
Get the assy bastardmug. by molotovCT October 20, 2008
Get the bastard saucemug.