Top definition
1. A person who spends WAY too much time on Twitter, to the detriment of his or her job, family, friends and/or mental health.
2. A cell-phone Twitter texting maniac.
3. Someone who believes they are the center of the universe, despite abundant evidence to the contrary.
Tim has become a Twitter Critter. He can't keep anything private anymore. I wish he'd get a life!
by Peter Kobs August 05, 2009
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