sweat beading or dripping into the crack of your ass during a strenuous physical activity, usually resulting in a tell-tale wet streak on the ass of your pants. Often used in a derogatory fashion implying bad body odor
by catpt94 November 04, 2009

by krissy613 September 27, 2007

by drinkmachine777 May 27, 2009

by Chris & Maia July 13, 2002

by rickyjimembo October 03, 2007

Swass is when you are riding on the subway in Boston and the aquarium doors open. In comes a blouser weighing in at about 300 plus wearing the wife-beater shirt. He stands up in front of you holding the pole. All you can see and smell is SWASS.
by Iknowwhatiamtalkingabout September 04, 2006

by Christine Perri August 27, 2005
