nbcb

1. nbcb stand for nabucibai

2. English -> your mum's pussy!

this phrase is use to scold people when they are angry

Girl: i wanna break up with you
Boy: nbcb! WHY!?

or

Boy: Please give me some money.
Mum: i don't have money.
Boy: you better give me the money, NBCB!

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