Guy 2: Yeah, he must have been so wasted ROTFL! :-)
Guy 1: rotfl? dude wtf, nobody puts in the t, and nobody puts noses on their emoticons! what are you somebody's mom or something?
Guy 2: But -- I don't understand! The phrase is clearly "Rolling on THE floor laughing," which implies that --
Guy 1: stfu noob
(From Penny Arcade)
Other person: ROTFL!!
Person: It's ROFL! Don't you know chatspeak at all?
Other person: What's chatspeak?
Person: wtf are you on here for if you don't know?