the act of being a stain.  To get shitfaced at a party, poop your pants, and then throw the party poo at your date.
by Stain March 15, 2005
Get the stainfulmug. by 95kirina95 March 28, 2009
Get the Stainmug. by Trainboy420 March 14, 2019
Get the STAINSmug. im so stained i cant feel my face
by Tim Doheny February 25, 2004
Get the stainedmug. 
Get the STAINmug. To stain yourself on another: To make an ass of yourself, under the influence of alcohol, to someone less drunk than you.
by chrisdizzle October 27, 2005
Get the stainmug. by Venj December 14, 2008
Get the stainsmug.