What is '250' mean in Chinese Slang?

This one’s a classic insult. The number 250 refers to "èr bǎi wǔ" (二百五), which is a slang term for someone who’s acting stupid or clueless. It’s not super harsh, but it’s definitely playful and teasing. Use it with friends when they do something silly.

Example: If your friend forgets their keys, you might joke, "Haha, 250!"

Fun fact: It’s often used in gaming or online forums to poke fun at someone’s mistakes.