Top Definition
Texting abbreviation for Mind Blowing Orgasm. 'Nuff said!!
Omg I just had multiple MBOs with my Husband!!!
by Smoke and Stars June 25, 2010
A word that lebanese people use to point at veiled female arab tourists.



Amy-Lee: Oh jesus! what is that black blanket doing in the mall?? is it an african ghost??

Brian : haha no! its a M.B.O... probably some arab woman
by lesbo-lebbo May 14, 2009
Literally means, must be off.

Usually used in any employee scheduling that is not typical 9a-5p but with work that varies with hours and days.

It means that no matter what this employee will not be available under any circumstances.
John has an MBO next Monday because he's having oral surgery.
by Mary LM February 11, 2009
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