Deleting/wiping everything on your Twitter page, effectively committing social networking suicide on Twitter.
My friend committed twittercide when she realized nobody cared about the boring things she does. Her real-time useless information will be missed.
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.