A massive bowel movement caused by eating those 99 cent half pound burritos off of the "Bell Grande Vaule Menu" at Taco Bell aka taco hell. The explosive shit that sprays the toilet looks exactly like the inside of one of their burritos, and if you got consumed enough of them (ususally in a drunken haze), the shit will actually smell like beans. After a bell grande shit, it takes half a roll of toilet paper to wipe properly.
"I just blew out the bathroom with a horrible bell grande shit. After smelling it though, I kind of want to get more taco bell."