"Cat's pajamas" is one of those nonsensical phrases that basically means something along the lines of "the best". "Cat's meow" and "bee's knees" are others that are essentially identical in meaning.
No, the idiom is only used to refer to rain.
under what headword would you find the idiom raining cats and dogs?
no an idiom would be like "it's raining cats and dogs"
No! 'its raining cats and dogs' is an Idiom.
That's not really an "idiom." Cats are animals. Cats lick themselves. In the process of licking themselves they often swallow a certain amount of fur. This hair gets balled up in their stomachs, and sometimes they'll cough (actually, it's more like "vomit") one back up. The product of this is a "cat's coughed up fur ball". Like I said ... not really an idiom.
You're thinking of a very old saying that means something like "Of course! It's obvious!" John: "Mary, would you go to do the dance with me?" Mary: "Has a cat pajamas??" [Does a cat have pajamas?] It comes from the whimsical connection between the coats of most cats and the appearance that the coat gives-- that the cat is wearing pajamas.
do you mean the boy in stripped pajamas
'Catting around' is one idiom I've heard.
The most common idiom about cats is "Curiosity killed the cat." A cat has nine lives. It's raining cats and dogs.
"It's raining cats and dogs" is an idiom.
It's an idiom.
It's not really an idiom. It means "what are you thinking about."