Violent rectal discharge consisting of identifiable chunks of food other then peanuts and corn in a aqueous matrix. Often resulting in anal irritaion and soreness characterized by large amounts of back splash.
"The food at the galley gave me Butt Vomit so bad I couldn't walk."
"The food from Del Taco looks like Butt Vomit."
"Yo, your breath smells like Butt Vomit."