de-tweeted
The act of unfollowing someone on Twitter as a result of them overtweeting or being otherwise annoying.
Twitterer 1: Do you follow Twitterer 3?
Twitterer 2: No, I de-tweeted them due to overtweets and TMUI (too much useless information).
Twitterer 2: No, I de-tweeted them due to overtweets and TMUI (too much useless information).