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3.
A massive amount of tweets aiming at one specific target, in a short amount of time. Used to produce a large amount of publicity about a topic. This word was initially used by Cenk Uygur of The Young Turks radio show.
@cnnbrk We want the public option! Look at the polls! Tell your audience what the American people want. #cnnprotest tweetbomb
by YoungTurkTom November 04, 2009
 
1.
When one decides to spam one particular tweet to their followers on twitter.

Especially when making it a Trending Topic.
vdistaulo: I'm going to Tweet Bomb #jkheartvdistaulo.
BlogTVers: We'll make it a Trending Topic.
minutes later...
Twitter: You have exceeded your tweet amount for today. Try again later.
by Blackflame619 September 06, 2009
 
2.
A massive amount of tweets aiming at one specific target, in a short amount of time. Used to produce a large amount of publicity about a topic. This word was initially used by Cenk Uygur of The Young Turks radio show.
@cnnbrk We want the public option! Look at the polls! Tell your audience what the American people want. #cnnprotest tweetbomb
by YoungTurkTom November 04, 2009