Can either mean laughing my fucking cum out, laughing my fucking cock off or for girls laughing my cunt off.
by Urban dict. User December 11, 2009
Get the LMFCO mug.laughin my fucking balls off--another one of those stupid abreviations that make no fucking sense in real life.
by kane April 27, 2003
Get the lmfbo mug.LET ME FUCKING SLEEP
*Get a text from an annoying person while you are trying to go to bed*
You: *angrily tweeting* "OH MY GOD LMFS"
You: *angrily tweeting* "OH MY GOD LMFS"
by iamkhow October 17, 2011
Get the LMFS mug.by ragingscythe July 3, 2006
Get the lmfaoshitas mug.Guy: *Texting girl*
Girl: *Texts guy back*
Guy: *Shares something about himself that is mildly funny*
Girl: LMFAO
Guy (thinking): damn, she doesnt like me
Girl: *Texts guy back*
Guy: *Shares something about himself that is mildly funny*
Girl: LMFAO
Guy (thinking): damn, she doesnt like me
by geoofthe2 December 15, 2019
Get the LMFAO mug.Boy #1: OMG! Have you heard?! MILEY CYRUS IS NOT A FUCKING SLUT.
Girl #1: LMFLTO, you retard! That is so not true!
Girl #1: LMFLTO, you retard! That is so not true!
by littleboyretard November 4, 2009
Get the lmflto mug.