As the number of people saying this on the Internet increases, it has gradually become a lingua franca on the Internet, meaning "nothing".

Nowadays, it has become a common term for online names and is popular among young people!

The correct way to write it is: 咒有.

Source: McDull’s Story No Fish Balls

McDull: Please, fish balls are thick noodles.

Boss: No thick noodles.

McDull: Really? Let’s have a bowl of fish ball pho.

Boss: No fish balls.

McDull: Really? Let’s ask for tripe thick noodles.

Boss: No thick noodles.

McDull: Then I want fish ball noodles.

Boss: No fish balls.

McDull: Why is there nothing? Then ask for thick cuttlefish ball noodles.

Boss: No thick noodles.

McDull: It’s sold out again. Could you please have a bowl of fish ball rice noodles?

Boss: No fish balls.

Classmate: McDull, their fish ball thick noodles are sold out, that is, all the combinations with fish ball thick noodles are gone.

McDull: Oh, there are no combinations. Excuse me, I just want fish balls.

Boss: No fish balls.

McDull: What about thick noodles?

Boss: No thick noodles.