What is '520' mean in Chinese Slang?

This is a romantic one! In Chinese, the numbers 5-2-0 sound like "wǒ ài nǐ" (我爱你), which means "I love you." It’s a cute and indirect way to say "I love you," especially in texts or online chats. People also use it on May 20th (5/20), which has become an unofficial "love day" in China, kind of like a second Valentine’s Day.

Example: If you want to confess to your crush, you might send them a message like, "Hey, 520! 😊"

Fun fact: Some people even use "521" because it sounds similar, and it’s less common, so it feels more special.