Excessive use of the meme language known as Leet (Leetspeak, Eleet, I33t, 1337, whatever), especially variations of "LOL".
Aaron: OMG, n00b, check out theez awesome lolcats!
Arin: Roflcopters, d00d.
Airen: T0tal pwnage!
Air In: You better not be rickrolling me now, ROFLMAO!!!
Voice from television public service broadcast: Recent studies indicate that excessive lollerbation can lead to loneliness, severe depression and hairy palms.