Definitions by honkersale

J.M.D.O. 

A common internet chat acronym meaning "Jacking My Dick Off." An analogue of LMAO, "Laughing My Ass Off."

Girlfriend7530: You wanna come over this evening?
Boy2458: Can't. J.M.D.O.

J.M.D.O. by honkersale May 17, 2009