Someone who is not just an ass, but a big ass, indeed, a horse's ass. Someone who really makes an ass of themselves.
Ex FEMA director Mike Brown is a Horse's Ass
a stupid or obnoxious person(also a term of adress)
I refuse to be friends with a horse's ass like that.
Some people like Ed Asner's politics; I think he's a horse's ass.
n: An oblivious idiot who generally says and does things that draw laughter at him, for being such an unbelievable moron.
"Did you see blake just shotgun that beer and then piss himself? Wow, what a giant horse's ass."
The President of the united states since 2000
To be a wise ass in any situation
Tim Stein is a such a Horses Ass.
An offensive name that can only be used if a person slaps you while you have a sunburn. Made famous on family guy when stewie says it.
Peter: Hey stewie! (slaps on butt)
Stewie: Ahh you horses ass!