The act of vomitting in the yard at a house party. Originating from a demi-god named Mikey who vomitted on a man named blum's yard after taking a tremendous beating in a game of beerpong
Man I blummed everywhere I hope some dumb sorority girl slips in it while wearing her Uggs. That would be sweet
by Mustafales June 21, 2005
A bloody cum; while discharging, you may be blumming if your cum is mixed with blood, usually involving severe pain from the penis; also known as male period juice
Jerry ruined his bed sheets after spraying blum all over them from shakin' the bacon too many times the night before.
by 56th street house May 18, 2006