j o 

Jack off, or Jerk off J O or JO

What a J O!
That guy was a J O.
Your being a J O.

j o by Gerret January 9, 2008

j/o 

Jack Off; masturbate

We had a mutual j/o last night.

j/o by Billy Jean Cox April 18, 2003

J.O. 

To jerk off

You going out tonight?

Nah Imma stay home and J.O. To some gay porn

J.O. by Ginger Snappah Head October 5, 2021

J-O

Or J-Oing, an abreviated term for the noun: Jack Off. Or Jacking Off. The act of masterbating. Made popular by lazy idiots and people who are shy about such topics in public.

Dude, were you J-Oing in my bathroom?

J-O by davethelightguy May 31, 2007

J.O. 

jerking off, beating the meat, slapping the foot long.
VARIATION: circle jerk (for desperate measures only)
Come on, if you don't know what JO is, then you're a girl, a homo, or you don't have a penis

Yo dude you gotta go home or go in the other room or sumthin i gotta JO.

J.O. by tony February 10, 2003

J.O. 

Jerk Off. Calling someone a hand job of sorts. Often yelled from a distance where the person can't have a clear vantage poit of the person yelling.

Yo J.O.!

Hey that guy is a typical J.O.

-Who was that?
-Idk, some J.O.

J.O. by Ian Duffy December 22, 2008

j.o 

a slicker way of calling someone a jerk off

all the young kids in my neighborhood are a bunch of fucking j.o"s

j.o by the infamous de oness September 14, 2009