lol: "i literally could not give less of a shit what you have to say"
Lol: "i don't care but i'm on my phone"
LOL: "i am currently mocking you"
rofl: "it's 2007"
lmao: "i'm pissed."
lmfao: "i'm super pissed."
LMAO: "i'm shocked and offended, humored by how shocking this is"
LMFAO: "i'm extremely shocked and offended and also mocking you"
omg: "i'm laughing"