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Laugh. My. Fuckin. Black. Ass. Off or "Big" or "Brown"
"Your Soo Dumb lmfbao"
LMFBAO by Sweeterness May 22, 2009
Related Words
lmfbao • LMFAO • lmbao • lmbfao • LMFAOAOAO • lmfaol • lmfaob • lmfaobidmt • LMFAOIS • lmfaoolmf
"laughing my fat black ass off"

Used by either black people or sassy gays.
Girl: I'm on my period

Sassy Gay: LMFBAO
LMFBAO by sassyGAy February 24, 2010
LMFBAO (abbr.) - standing for laughing my fucking bitchass off
You got a 2% on your math test.
L. A big one at that. LMFBAO.
LMFBAO by herobrine049X January 5, 2023

lmfaotic system 

when your lymphatic system is lmfao
Eddy: I just got a 26/40 on the physics test
Joe: Lmfaotic system
lmfaotic system by AlbertiBass November 8, 2018

LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE 

How an extra mf types LMFAO
* something funny *
Her extra ass : LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE
A notorious Chinese hacker. Brother of two other hackers named Lmao and Lmfao, they work for the Koreans.
Interrogator : Now we know than Lmfao is actually working with two other people, Lmao and Lmbfao.

Suspect : No.

Interrogator : This is very confusing.
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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