focroflmaool 

Combined form of focl, rofl, lmao, and lol. Means "falling off chair, rolling on floor, laughing my ass of out loud". It's generally used in IM's.

joe: U gotta watch this video! its the funniest thing!

*sends video, and jim watches it*

jim: wow, focroflmaool

focroflmaool by mrpirate2112 September 7, 2007

FOMCROFLMFAOOL

Falling off my chair rolling on floor laughing my ass off out loud.

I was FOMCROFLMFAOOLing!

FOMCROFLMFAOOL by Thoraxe69 September 17, 2011

FOCROFLMAO 

Combination of FOCL (Falling off chair laughing), ROFL (Rolling on the floor laughing) and LMAO Laughing my ass off). FOCROFLMAO therefore is "Falls off chair rolling on the floor laughing my ass off".

As a reaction to a funny comment or joke told over the internet.

E.g. Joke Teller: ...so the guy replies, I didn't know your dad was a pharmacist.
Listener: FOCROFLMAO!!!!!

FOCROFLMAO by Mallowman August 26, 2007