LMAO

LMAO: Laughing My Ass Out, is frequently used to tell that your laughing louder than LOL or ROFL.

*When someones tell a hilarious joke or does something hilarious*
Me: LMAO

LMFAO

Simply the evolution of LOL, that means "laughing my fucking ass out", cause your wan't a light version here is two

links to very known and similar definitions: ROFL, LOL.

"when your watching pewdiepie and just understood a low budget joke"
LMFAO XD

Ligma

Mortal disease caused on the balls, often transmitted by unprotected sexual relations, it is like an “gateway disease” to testicular cancer, people still often joke with this disease saying “ligma balls” (lick my balls)

Steve - Do you have ligma?
Phil - Yeah, I was diagnosed with this disease quite a while, times are hard.
Steve - Then LIGMA BALLS!
Phil - Your son of a bi...