ROTFS 

"rolling on the floor shitting" is derived from ROTFL - "rolling on the floor laughing."

Last night, I apparently drank entirely too many King Cobras and ended up ROTFS.

ROTFS by fred savage October 20, 2003

ROTFLDM 

Rolling On The Floor Like Draco Malfoy
This term refers to the character Draco Malfoy from A Very A Potter Musical, the fan-made parody musical by StarKid Productions. In the musical, Draco is known for rolling around on the floor, so, to ROTFLDM is to roll around in an imitation of Draco.

Person 1: My friend just said she was a Hufflepuff, and I said "What the hell is a Hufflepuff?"
Person 2: ROTFLDM

ROTFLDM by Remus John Lupin May 24, 2010

ROTFLMAOMFGTFOADIAFTWTF

Internet acronyms used to express extreme amusement and/or disbelief, strung together to make one very wrong word.

Short for:

Rolling On The Floor Laughing My Ass Off
Oh My Fucking God
Get The Fuck Out
Fuck Off And Die In A Fire
For The Win
What The Fuck

So guess who I saw today?

Who?
I saw Lisa today!
Really? ROTFLMAOMFGTFOADIAFTWTF

ROTFLMAOMFGTFOADIAFTWTF by Blippee August 31, 2023

rofsbmnhfltm 

Rolling On the Floor Screaming Because My Nuts Hurt From Laughing Too Much.

After a long day in lunch, Michael and Jason were rofsbmnhfltm-ing at the creation of the acronym.

rofsbmnhfltm by Jasozan March 4, 2010

ROFSP 

Rolling On Floor Slaying Pussy.

this is the act of rolling on the floor while having sex with a women/cat.

Dude Sam is so off the heazy he ROFSP every day.

ROFSP by Sam Kelly 0432806055 September 29, 2010

Rolfsen 

If you're a "Troll" or "Trolling" on the internet, then you're a "Rolfsen", or a "Trolfsen"

Using the word Rolfsen is a more discrete way of saying troll, while pulling off a Trolfsen is ultimately the highest rank of trolling achievable.

Damn I felt like Rolfsen yesterday when Blizzard banned me.

or

Person 1: Trolfsen here went to talk about a loan in the bank yesterday.

Person 2:Lol, what do you need a loan for?

Person 1:I don't, the bank does ;)

Rolfsen by Professional troll. September 19, 2012

ROTFC 

Rolling on the floor crying...
After something very insightful, inspiring, or saddening has been said/texted/tweeted, which brings someone to or close to tears, one responds with the phrase ROTFC.

I just heard the most insightful, inspiring, or saddening thing, so i am ROTFC.

ROTFC by Renaisaloser April 21, 2010