LMFM 

Abbreviation for "Losing My Fucking Mind". Used mostly in text communication.

Parents are over for the holidays and I am LMFM!

LMFM by idunnoit November 2, 2009

LMFMAO 

Laughing My Fucking Mexican Ass Off

mexican one; dude that fat bitch keeps ordering tacos.
mexican two; LMFMAO!!
mexican one; She fucking woould.

LMFMAO by CHUSMA_ May 16, 2009

LMFMO 

Laugh my fucking mask off

Bro I shit you not this girl fell down the stairs with a banana in her mouth and meat balls in her hand. I laugh so hard my mask came off. LMFMO

LMFMO by ADUHREDHULK October 18, 2020

LMFMO 

Laughing My Fucking Mask Off

When the hacker heard that joke he laughed his Fucking mask off (LMFMO)

LMFMO by CeruiX February 15, 2017