sin city bags's definitions
refers to when a man has anal sex with a man or a woman until the receiving partners anus is gaping. Then the man proceeds to shit into the receiving partners gaping anus.
Holy shit bro, Melo gave Suzie a grand canyon in the back seat of his STI. The car smelled like shit for days.
by sin city bags July 21, 2009
Get the Grand Canyonmug.