must be nice..........
by wikked January 6, 2005
 Get the mbnmug.
Get the mbnmug. 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!
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 28, 2005
 Get the mbnmug.
Get the mbnmug. by bbg122567 December 9, 2018
 Get the Mbnmug.
Get the Mbnmug.  Get the Mbnmug.
Get the Mbnmug. Jack: "I just bought three Alfa Romeos. One for me and the other for me and the other one for my wife"
Me:" Well must be nice " (mbn)
Me:" Well must be nice " (mbn)
by Babygot_back September 1, 2018
 Get the Mbnmug.
Get the Mbnmug. RaQuawn: Yo this banana pudding is f*cking garbage!
Tierooone: Aye my moms made that f*cking banana pudding!
RaQuawn: Mbn!
Tierooone: Aye my moms made that f*cking banana pudding!
RaQuawn: Mbn!
by ShaundaDawn November 30, 2016
 Get the Mbnmug.
Get the Mbnmug.