Pronounced: tài niú le
Literally: Too cow!
Means: “So awesome/great!” or “So brutal/bad!” depending on the circumstances. If you get 100 on a test that all your classmates fail, or there’s an awesome move on the sports highlight reel, people can say that it’s tài niú le! But if there’s a really embarrassing sports highlight, or you fail a test that everyone else aces, or someone does something blatantly wrong that most other people wouldn’t do like drive off on the police or run out of the restaurant without paying, then it’s also tài niú le! When used negatively it’s criticizing a bad person or making fun of a stupid/unfortunate person.
You can also say “really cow” (真牛) where you’d say, “really cool” or “really awesome.”