Laughing my fat butt off
That's hilarious... lmfbo right now.
|LMFAO||Laughing my freakin' a** off|
|ALOL||Actually laughing out loud|
|CSL||Can't stop laughing|
|555||Ha ha ha|
|LMSO||Laughing my socks off|
|FAH||Funny as heck|
|TFF||Too freakin' funny|
LMFBO is an acronym that stands for "laughing my fat butt off," which is a more specific version of LMBO. It is a pretty obscure acronym that not many people know but if you think it's funny, go for it.
The acronym is typically only used by people with good sized rears. If you use it and you don't have a rather large bottom, then it comes across as weird or fishing for sympathy.