What is Cat's Pajamas?
1.
Super hip. Amazingly sweet. Fantastically cool.
you looks so fly in that outfit, you're the cat's pajamas man.
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2.
The term "cat's pajamas" comes from E.B. Katz, an English tailor of the late 1700's and early 1800's, who made the finest silk pajamas for royalty and other wealth patrons. This phrase is often likened to and/or confused with the 20's term "cat's meow".
Katz's pajamas are the cat's pajamas.
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3.
Traditionally followed by the phrase, Whole darn department store
"Ain't I the Cat's Pajamas?"
"You're the whole darn department store!"
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4.
Used to describe something that is interesting and confusing. Often used in sarcasm.
"Hey dude, I just totally
pwned thatn00b by using my new Frisbee of DOOM!"
"Well ain't you the cat's pajamas."