Horse's arse
Extremely derogatory term, used to describe a face that is remarkable in it's ugliness.
"Hang on, what's old Horse's arse doing on TV? What, she's marrying Prince Charles?"
horse arse
One who cannot consume his quota of Black Horse within the alloted time of a right nuts chug contest. Punishment for being a horse arse is usually being left out on the road once passed out.
"hey rick, look at dat fuckin' horse arse"
"lets toss dat horse arse!"
"lets toss dat horse arse!"
horse's arse
Something ugly, used or comparisons.
Her face was the horse's arse.
horse's arse
Not a very nice person. Also horse's ass. Can be described as the north end of a horse going south.
I wouldn't take any notice of what he said, he's just a horse's arse.