well i got this idea mainly because of people saying "LOL" in a random case. mostly not fitting to the topic. just stay here and listen. new explanations and feedbacks are also welcome.

lol = this is actually not that funny but im too lazy to say something different at the moment.

rofl = also not that funny but it sounds better than lol.

LMAO = im horribly stupid and i just had some evil laugh going on.

W00T = i dont know what you just did there but it sounds c00l.

stfu = you better shut your mouth or you will never be able to use it anymore.

gtfo = youre really annoying me. leave now or i will gun you down.

brb = i really need to go to the toilet.

wtf = im wondering what you just said and i dont know how to express it.

ftw = well i like that. could be better but i like it.

omg = something cool just happened but i want to tell you "omg" instead of writing a novel.

@Shockwave