Twitter Bomb allows you to place segments of a tweet into a database, and aggregate via services like twitterfeed.com tweets based on a sentence formed from a matrix of basis of sentences. You will be able to run a campaign on twitter and have your sentences randomly made from the segments of sentences known in this applicaion as the 'base' of the phrase.
There is a mirade of options with this application. You can specify URLS to pass someone too included in the URL can be the phrase in a URL Encoded string so you can direct people to search engines and topics to do with the sentence.