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1.
1. The online Twitter community ( a subset of the blogosphere).
2. A derogatory term for the place where ridiculous, meaningless, and tacky content from social networking sites resides on the Internet.
Kia: Did you hear about Lady Gaga cat breading in the VIP lounge?
J.C.: Hells yeah- it's all over the Twitosphere!
by Azenger February 12, 2012