When you blow your nose or sneeze and you let a fart go by accident. Can also be used to to simply describe a fart on it's own.
by Ray Kelly June 3, 2008
Get the bum sneezemug. by Tuna Wanda May 26, 2005
Get the bum wadmug. by Gypsum fantasic August 13, 2006
Get the bum buggermug. by Chrisxxxxxxx July 11, 2010
Get the Bum jointmug. a skiier, usually male, in his late 30's or older, who generally spends the entirety of his life at ski resorts. the rest of his life is spent sharpening skis or purchasing skis on eBay. alternatively, he coaches a high school ski team.
by jer April 22, 2005
Get the ski bummug. by louis June 6, 2003
Get the bum chummug. by Sexy Jon March 21, 2005
Get the bum chopsmug.