To grunt and strain so hard pre-orgasm that the semen comes out bloody and painfully. See also, Blorgasm/ bloody orgasm
by Andy Zavs March 31, 2010
Glen: OHHHHHH!
Sandy: what??? it's already over? -___-
Glen: sorry for the one thrust nut bust, i've never done this before
Sandy: what??? it's already over? -___-
Glen: sorry for the one thrust nut bust, i've never done this before
by bigDjohnston69 August 24, 2011