roflmoment 

a moment when one is laughing because of what one's colleague has said, which becomes an inside joke one cannot possibly explain to someone else- probably due to extreme laughter

Below is a roflmoment-
Teacher: Did I ever tell you you look like Harry Potter?

Student: Yeah, I've people have said that before.

Teacher: *Crosses student off attendance list and instead writes "Harry Potter"*

roflmoment by FireIsHot-Ouch February 8, 2009

romoment 

Fucking up a golden opportunity, a la Tony Romo.

Man, the Steelers were about to score until Big Ben had a romoment and threw an interception.

romoment by lbchdrdr November 10, 2009

Rofl Moment

The act of actually rolling on the floor and laughing. Urination is ussually involed in this act.

Bro-man: OMMAH GAWD LIEK LOL
*bro man falls to the floor and begins laughing*
Dude-guy: ROFL MOMENT

Rofl Moment by Clyde the shifty one August 9, 2008