Shouted in moments that often define a great joy or something spectacular in nature.Thought to be awkwardly Canadian in origin, circa 1960s Manitoba Province, this phrase was recently brought back to life in the Midwest United States of America. As of 2018, variations of the word have been heard as far south as Memphis, Tennessee.
My hotel has a bidet! That's the cat's ass! I've never felt so fresh so clean. I am going to purchase one upon my return home.
based off of the popular saying "the cat's pajamas" or "the cat's Meow" this is an adjective that means good, great or spectacular. It was determined in Madison WI that tits were better then pajamas.
Holy shit that guy just beer bonged a 40, he is the cat's tits.
1920s slang... someone or something wonderful or remarkable.
The other definition says it's from the '50s... In the 50s, there was a strong nostalgic fad of everything 1920s, which is why this term may have been thought of as from the '50s.