What does MBN mean on Snapchat?
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Snapchat: Charms, emojis, trophies and everything you need to know
20. What does MBN mean on Snapchat?
MBN on Snapchat means "Must Be Nice". It's usually used when you're jealous of something or someone. [Igor Golovniov/SOPA Images/LightRocket via Getty Images]