You're beginning to sound like a juvenile delinquent. 少年犯 Try to find something else to ask about.

you mean 牛逼？？only 牛.

I haven't even typed the second word with my computer. So, find something else to ask about. Children may call somebody names because most of them don't know the meaning of the dirty words. But you don't look like a child, so, don't ask such question again. You don't want to be a barbarian, do you?

the interesting word you found, is not well used , not for human , also not for animal . just a strange word to most of person because they never saw these words before

If you want to praise someone is really cool, you can say "牛逼（niu bi）",but 牛is better, just an adjective and it is not related to the animal of cattle or cat.