It's when you chat online for so long that you begin to use phrases like rofl and wtf in the real world. see also: reality chatspeak
dude: WTF?? My clam chowder tastes like bongwater!!
sane person: shut up you whore.
When you chat so long and often to your mates online that you keep using MSN abbreviations in the real world.
I keep saying lol all the time in real life, lol.