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"
or
"I'll drink this whole bottle of whiskey, cat's ass"
by RT July 19, 2004
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when someone tkaes a drag of your cigarette and leaves it all gooey and wet!
you asshole, you cat-assed my smoke!
by Magdalene St. Vitus March 22, 2005
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Jumping onto high surfaces quickly, and silently landing on your ass. The use of arms for balance is strictly prohibited.
Andrew cat-assed onto the roof of his car.
by AndrewRice July 27, 2011
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When something is beyond words to express with the english language. To express extreme awe with some action, someone or something.
That movie was the cats ass !!!

Dinner, was the cat's ass tonight.

by Mark in Calgary March 15, 2009
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