LMFSBO 

L-Laughing. M-My. F-Fat. S-Samoan. B-Butt. O-Off

She Said i Wass Juss LMFSBO

LMFSBO by Samoan POWERRR(((: July 29, 2010

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

LMFSO 

It stands for Laughing my fucking socks off.
Or also a commonly made mistake
when trying to type LMFAO.
:D

1 Person: ~tells a funny story~

2 Person: Hahaha I'm LMFSO now.

3 Person: ROFL

LMFSO by iAcidic April 4, 2009

Lmfso 

Laughing my fucking sack off

That joke was so funny I that I’m laughing my fucking sack off (Lmfso)

Lmfso by Psychoticdingus May 8, 2018

LMFBO 

Acronym: Laughing My Freaking Butt Off

Definition: An expression of extreme hysteria. Like LMBO, it is a common reaction to something funny.

Priscilla: "I'm hungry."
Percy: "Hi Hungry, I'm Percy."
Priscilla: "LMFBO!"

LMFBO by mu_ September 5, 2019

lmfbo 

laughin my fucking balls off--another one of those stupid abreviations that make no fucking sense in real life.

Guy - I kill my wife.
Dude - LMFBO! Thats so LOL!
Guy - No, I really did.

lmfbo by kane April 27, 2003

Lmfsombf 

Laughing my freaking slime off my butt fucker

That was so funny lmfsombf

Lmfsombf by Bigenglishballs June 15, 2019