A bowel movement that is mostly or completely liqud. Generaly squirts out like a fire hose. Liquid shit that usually happens after eating bad food or a night of heavy beer cunsumption.
Man i was drunk last night and i had the serious butt puke this morning when I woke up.
by Russ Bus January 10, 2006
To spray vomit or blomit (bloody vomit)into the tube that you are felching someone with, therefore filling the anus with puke.
After jaay was done felching his 89 year old boyfriend, he had to go to the bathroom and drain the buttpuke from his rectum.
by Legendary Films September 21, 2004