short term for: make-out
by Jakeeeeeee December 20, 2007

by J-junk January 13, 2006

Abbreviation for make out.
by crobot July 29, 2005

M.O-verb. commonly referred to as making out. Thus by combining the M and O of making out one creates MO. Pronounced like MOW, or MOE.
MOING, MOED, MO.
MOING, MOED, MO.
by amilli78693 August 20, 2009

The abbreviation for the words multiple orgasm. Said when something is so indescribably-delicious, it gives you a feeling like no other.
After sampling a taste of Robert's decadent dessert, "Chocolate Heaven", I was so overcome, that I closed my eyes, smiled, and thought M.O. - mmmmmm.....
by felinegroovey January 7, 2009
