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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
Related Words
lmlfbo lmfbo lmlbo lmbfbo LMFBOAT 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
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
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
LMFBO! That shit is funny!
LMFBO by WorddGod November 28, 2010
Laughing my little booty off 😂😭
LMLBO you dumb .
lmlbo by Treaz101 May 15, 2018