Twearth - Twitter Earth
Tweetup - An event where Twitter members meet up.
Know about the twitter lingo?
Let us a make twictionary here at webmasterpeers.
Let me start:
tweeple - people on twitter
twitterverse- Universe of twitter
twittascope - Horroscope on twitter
RT - Retweet
#followfriday - Recommend a follower of yours to the world on Fridays.
Sees·mic - desktop application for both Twitter and Facebook.
Sesame tweet - a young'uns tweet