LTMFB 

Let The Mother Fucker Burn. As-in, let it fail, don't do anything about it.

SarcasticSusy: Sam, should we fix this bug in our code?
SarcasticSam: LTMFB

LTMFB by sarcasticsam October 10, 2012

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

LMMFBO 

Imagine an ironic mashup of LMBO + LMMFAO.

Friend1: *sees something hilarious*
Friend1: Sends to Friend2 (DM, SMS, carrier pigeon, etc)
Friend2: "LMMFBO!"

LMMFBO by ImperialFleet1 February 17, 2023

LMFBFO 

The new text buzz word for fitness gurus
Meaning - Laughing my fucking body fat off

Text convo:
Person1 - Hey did you know shadman forgot his bait in the freezer?
Fitness guru - LMFBFO. I guess the only thing he will be catching is a cold
Person1 - Lolski

LMFBFO by Alfinator December 19, 2011

LTFBR 

Acronym for Long Term Fuck Buddy Relationship...

For those of us too independent for a real relationship, too horny to be single, and too wise to just sleep around with whomever.

"Look, Bob, I know you like me, but I don't want anything more than an LTFBR."
-- "You mean.. you want a long-term relationship based soley on sex?"
"Yes."
-- "So no dates, no presents, no meeting the parents, no drama?"
"Right!"
--"PERFECT!"

LTFBR by kimbathecat February 11, 2007

lmfbao 

Laughing My Fucking Black Ass Off. Same as lmfao but with a little more colour

person one:So then I said YOU DO IT!

(Black)Person two:LMFBAO

lmfbao by Knee-Grow10 August 19, 2007

LMFBAO 

Laugh. My. Fuckin. Black. Ass. Off or "Big" or "Brown"

"Your Soo Dumb lmfbao"

LMFBAO by Sweeterness May 22, 2009