Internet self 

A term describing the sum of one's internet activities, including facebook and twitter profiles, forum activity, instant message conversations, websites run, etc. The term is meant in contrast to the rest of one's life in the real world.

My internet self is such a dick to this girl... i'd be way nicer to her in real life.

Internet self by Ebonyks January 23, 2011

Internet self-retardation 

The act of knowingly talking stupid while chatting on the internet. Usually in an attempt to sound cute or random.

Person 1: O HAI HOW ARE YEW?!

Person 2: do me know yew? I dun think yew know me.

Person 1: Oh I sowwy fo dat! i thought yew was summbuddy else!

Someone with intelligence: Stupid random morons. That's Internet self-retardation for ya.

Internet self-retardation by hillbillybiskit August 5, 2008