It's the excrement mixed with sperm that is squirted out of a woman, or man's asshole after punishing anal sex. Often, the receiver is given laxatives beforehand. Phonetically, it's spelled b-yoof.
by GrantR August 18, 2005
by Spanky McSpunk April 15, 2003
by jessyka77 September 25, 2013
by Long Shlong John1231 January 22, 2013