MBN 

This stands for *Must Be Nice* a lot of people use this when they see other people in goofy or cute relationships.

MBN 😍😭 wish I had a bae.

MBN by TheRealBeale 🤩 October 7, 2018

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

mbn by Justin Glucose October 28, 2016

mbn 

must be nice

Awn your boyfriend is taking you out, mbn

mbn by you thought ! July 6, 2016

mbn 

must be nice..........

GuyA: Damn I'm full, huge steak dinner.
GuyB: I'm eating chicken Ramen, mbn.

mbn by wikked January 6, 2005

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!

mbn by El Muñeco December 28, 2005

MBN 

Must be nice

Mus B nice

Bestfrannn wanna come ova an chill
Bestfrannn wit a bae naw bae takin me out

Bestfrannn awe mbn

MBN by QveenArii November 19, 2017

Mbn 

depends on the sentence

must be nice or my bad nigga

sam- i have a boyfriend

brea- mbn

Gigi- why you take so long to answer

John- mbn

Gigi- you good

Mbn by bbg122567 December 9, 2018