p,i.t.b.u.l.l.
A person who's always in your face unless they're too wasted to care. They're loud, messy, and never shut up unless they're passed out.
My boss is a p. i. t. b. u. l. l. He yells at everyone unless he's drunk.
My brother is a p. i. t. b. u. l. l. He won't stop talking unless he passes out.
The kid next door is a p. i. t. b. u. l. l. He won't stop running around unless he's drunk.