Top Definition
mbn
1. stands for "must be nice" and used sarcastically when someone tells you something that makes them sounds wealthy, carefree, or conceited.
Wealthy Chick: My parents, my sister and I are going to Aruba for Christmas for a week then to Argentina and Brazil to spend the New Year.

Poorer Friend: MBN! shit!!!

Wealthy Chick: What does 'mbn" mean?

Poorer Friend: it means that it Must Be Nice, mutherfucka! Tell your parents to hook ME up!
by El Muñeco December 08, 2005

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mbn
must be nice..........
GuyA: Damn I'm full, huge steak dinner.
GuyB: I'm eating chicken Ramen, mbn.
by wikked January 06, 2005

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Acronym for MUST BE NICE. Usually used on Facebook when someone posts pictures of a fancy car or house.
Brian: Check out my $68,000 Honda

Joey:M.B.N
by BAUWLUH August 17, 2011

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mbn
1) Stands for "mus b nice", representing jealously of something someone can do that you cannot
Kyle: I'm going to go out tonight
Justin: mbn
Kyle: Talk to you later, with friends
Justin: mbn
by Glucose Gringo October 28, 2016

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mbn
must be nice
Awn your boyfriend is taking you out, mbn
by you thought ! July 06, 2016

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Mbn
My bad n*gga
RaQuawn: Yo this banana pudding is f*cking garbage!
Tierooone: Aye my moms made that f*cking banana pudding!
RaQuawn: Mbn!
by ShaundaDawn November 30, 2016

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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MBN
Jackronyn for MasturBation Nation - A group of outstanding (self proclaimed) men, linked by messaging technology to share in inappropriate comments, sarcasm, and random shenanigans.
Girl A: "Look at that group of extremely hot guys texting inappropriate, sarcastic, highly intellectual messages."

Girl B: "Hot is right. I have always dreamt of being the centerpiece in an MBN circle twerk."
by justsanotherdude December 02, 2013

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt