Definitions by yyoo mmaammaa

J.O. 

JERK OFF...JACK OFF...fuck yourself...yano if your a guy...dude how could anyone not know this

basicly every guy in the world is so desperate that they have to j.o. whenever they can, otherwise they act all bitchy...stupid horny retahds

J.O. by yyoo mmaammaa January 20, 2004