ROFJ 

Rolling On the Floor Jizzing

as the like of ROFL Rolling On the Floor Laughing

(Ryan Bragg has props for this)

*girl says something funny*
Guy: OMG! ROFJ

ROFJ by ThatSuspiciousFlower August 30, 2009

ROFJMD

Acronym for Rolling On the Floor Jacking My Dick. Used when something is too funny to use, lol, lmao, rofl, ect...

Used in a sentence- ROFJMD, that was the funniest crap I've ever seen.

ROFJMD by Haywood Jablome 69 August 8, 2010

ROFJMO 

Acronym used in text messages and message boards standing for 'Rolling on floor jerking myself off'. As ROFLMAO implies something funny was written, ROFJMO acknowledges something sexy.

Moe: What did you think of "Unfaithful"?
Curly: ROFJMO!!!!!
Moe: me too; Diane Lane is hot.

ROFJMO by Timmy the Geek January 14, 2009

ROFJO 

Roll On Floor Jacking Off, originally thought up by a commenter at kotaku see GTJO

The other day my mom walked in on me while I was ROFJO

ROFJO by Moopo August 28, 2007