A niftyier way of saying cool, that is the shit, or this is wonderful. It is also used to say that someone or something is really clever or intelligent.
the guys at holybullshit.com are the cats ass.
by James Bourne February 21, 2004
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something to be fucked by Ganj4 on a weekly basis when he isn't getting any <3
Ganj4 Mmmmmmmmm, I'm gonna dip my meat in the cats ass
by Sway March 26, 2004
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A person,thing or event to be held in high regard. From the meticulous treatment and devotional attention a feline bestowes on its hindquarters. Not in wide useage.
You look that good and can cook too? Damn if you ain't about the cats ass!
by numerator April 30, 2005
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Being genrally awesome, something that is really, really sweet.

there are also varitions such as The Cat's Meow
person A: "Hey man look at this sweet new game"

person B: "WOW! that's the cat's ass!"
by FathaFunka June 30, 2010
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The very best. The finest. The epitome. Most excellent. Boss. Zorch cow. Real George.

This cat's ass expression was common in the early 1960s.
Whoa, where did you get that piano? It's cat's ass!

During a Vince Guaraldi concert in Berkeley in 1961, a dreamy beatnik kept mumbling "Cat's ass, man, cat's ass"
by Bumkicker Slade April 24, 2005
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To play a computer game, especially an Massive Multiplayer Online (MMO), for extreme lengths of time. This may come at the expense of hygiene, social interaction, even nutrition. Popularized by the article "The Surreal World" by Hayes Reed where he described an Ultima Online obsessed friend's apartment as, "A den of cat ass and murdered time."
Did you hear that Jim was cat assing on WoW for so long, he actually got scurvy from eating nothing but ramen?
by Nelsormensch June 13, 2007
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absolutley, without a doubt, for sure, unbeatable, "can't be licked"
"That brand of whiskey is the cat's ass"
"I'll drink this whole bottle of whiskey, cat's ass"
by RT July 19, 2004
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