The douche bag who comes to your house party and drinks too much, then proceeds to throw up everywhere, leaving you to take care of them AND clean up their vomit while they sleep in your bed.
May be replaced with Barf O'Douche, which is said with an Irish accent.
Wary party thrower: "Barfero Doucho! You managed to throw up in my bedroom, in the shower, AND all over my dog! Thanks a lot!"