someone who has a twitter account, yet believe themselves to be too boring to post regular updates while still managing to criticize everyone else on their lack of twitter activity.
Guy 1: you have twitter but never use it...what a waste of time!
Guy2: neither do you, so cut the shit and stop being a Twitticiser.
Guy 1: you make a valid point, i now see right from wrong.
Being eliminated from a position or social setting in the wake of posting stupid and/or offensive crap on Twitter.
"Always-On" Adam Orth became a victim of Twittercide today, being let go from Microsoft after managing to piss off nearly any XBox gamer with his dumbass #dealwithit remarks.
The tweet to end all tweets on a topic that you know is completely the right thing to tweet, but cannot handle the backlash that would follow such madness.
Mike set off an atomic twittercidebomb by telling Amy she looked fat in her new dress.