cat's ass 

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"

cat's ass by Bumkicker Slade April 24, 2005

cat's ass 

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"

cat's ass by RT July 19, 2004

cat's ass 

Something that's incredibly cool.

Man J.D. is the cat's ass

cat's ass by AWe_Some October 8, 2010

cat's ass 

the best, the bomb

Have you heard the Jason Mraz CD yet? It's the cat's ass!

cat's ass by your mom September 7, 2003

cat's ass 

The coolest thing ever!

Wow! Tom's new car stereo is the cat's ass! 8)

cat's ass by Square_Peg February 8, 2010

cat's ass 

In reference to something more excellent than a cat's meow

Well, ain't that the cat's ass?

cat's ass by sarahisthecatsass December 15, 2006

Cat's Ass 

Something that is incredibly awesome; super cool.

Bruh, that mac and cheese is the cat's ass.

Cat's Ass by TatoHead February 25, 2015