(Guys) when you think you've cum and you realize that the liquidy substance is actually the vomit of the girl giving head oozing all over your cock. Getting boot-cocked refers to the next day when you are in the shower and realize that the crusty shit on your cock isn't mung but the leftovers of the vomit!
by DaJizzle October 05, 2005
Get the Boot-cockingmug.