A sexual maneuver involving the simultaneous insertion of a man's penis into a woman's vagina and his testicles into her anus. Once this is accomplished, there is nothing left to the maneuver but for the man to remove himself from both orifices whilst exclaiming "Boo-yah!"
Oh yeah, I boo-yah'd that Sandy chick. She knew enough to ask for it by name, too.
by Der Kaiser December 15, 2004