LMFAOBOAT 

laughing my ass off + boat = LMFAOBOAT

wait, so there's ROFLCOPTER and LOLLERCOASTER then what's lmfao? LMFAOBOAT!!!

LMFAOBOAT by P33nChristine May 10, 2007

LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE 

How an extra mf types LMFAO

* something funny *
Her extra ass : LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE

LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE by Starship470 March 14, 2019

LMFBOAT 

L - laughing

M - my
F - fookin
B - booty
O - off
A - at
T - that

Pronounced like "limf boat" in speech.

Person 1: "Yo! Did you hear about that person that's so concerned about being stalked that they only put their initials on their social media page? I found their LinkedIn profile!"
Person 2: "LMFBOAT! What a scrub!"

LMFBOAT by Xx_bigbrainboi_xX December 27, 2020

LMFAOBTWTFF 

Laughing my fucking ass off because that was too fucking funny!

Fernie:> Dude, shoulda been here. Josie Rosie just tbagd that dbag xbf of Monica's

Eddie:> LMFAOBTWTFF! FTP!

LMFAOBTWTFF by The Original Shoebrush April 30, 2009

LMFAOROTF 

Laughing My Fucking Ass Off Rolling On The Floor

Entered when texting, chatting or e-mail as: LMFAOROTF

LMFAOROTF by Central Texas Dude July 20, 2010

LMFAOBT

Stands for Laughing my F*cking ass off big time

Me: hey did you see that biatch picking her nose, I thought she was gonna pull out her brain?

Friend: Yeah, I was LMFAOBT at her, she was a dumb ass, so her brain would have come out easily through her nose.

LMFAOBT by paulusthewalrus June 19, 2010

LMFAOOAOAOA

Abbreviated form of "Laugh My F**king Ass Off Over And Over And Over Again"

Greater laughment than LMAO and LMFAO

This abbreviation may also be seen in alternative spellings such as (LMFAOO&O&OA) or be seen as shorter or longer versions depending on the users preference (LMFAOOA - LMFAOOAOAOAOAOAOAOAOAOAOAOAOAOAOAOAOAOAOA)

Sam: I just walked into the glass door

John: LMFAOOAOAOA!

LMFAOOAOAOA by AX-Trigger October 6, 2010