ROFLHAC 

Literally translated into Rolling On Floor Laughing Hysterically About/At (insert 'c' word here)

Used as a random phrase to signify that you are laughing about something, something that is often random itself.

Started by Seth Davis, in his every day life.

ROFLHAC - Rolling on floor laughing about clowns
ROFLHAC - Rolling on floor laughing at Charlie
ROFLHAC - Rolling on floor laughing about cake.

ROFLHAC by Arsonist100 November 25, 2009

roflham 

rolling on floor laughing about the simple idea of ham

guy- hey look over there at that ham
guy 2- ROFLHAM

roflham by alm38 March 15, 2008

rofltaco 

Rolling on the floor laughing that ass completely off.

A: I raped your dog.
B: Rofltaco!
A: Damn bro, it wasn't that funny.

rofltaco by Zebediah! June 1, 2009

roflhax 

Roflhax-
(1)The act of roflpwning someone
(2)The act of haxx0rtyzing someone, and rolling on floor laughing.
(3)The act of completly and utterly serving someone.
(4)unknowncheats
Also known as rifkhax
rifk

(1)**BLAM BLAM** AMG! ROFLHAX!! D00D!! NUU!
(2)<Lotox> noob
<_XIII>I leik soup
<HaXoR> I'm gay
<HaXoR> SHIT! YUO ROFLHAX'D ME INTO THE TRUTH!
<_XIII> Don't worry, we know. ROFLHAX'd JU!! loLolLLOLLL! RIFK
(3)6:58pm Eleethal was kicked by Max_Power (No cursing will be tolerated. Repeated offenders will be banned. (Matched: fuck))

roflhax by XIII April 11, 2005

ROWLHACF 

Roaring out with laughter & having a coughing fit

dude that joke had me ROWLHACF

ROWLHACF by hkGoldie April 9, 2013

rofltaco 

A delicious taco made of all things roflicious.

ur mom: mmmm... i <3 rofltacos. and spreading my legs for anyone and everyone.

rofltaco by Mo Grizzle November 19, 2007

Rofljaculation 

The act of Rolfing so intensly that you ejacluate.

Rofljaculation: After you told that joke, I rofljaculated all over your rug.

Rofljaculation by Pawlakt April 19, 2010