A person who updates twitter at least 5 times an hour, every day. Often this person links their twitter account to their facebook account, causing the News Feed to be filled with only updates from them.
1. When you follow someone on Twitter because they just started to follow you. This is usually done because you want to, but can sometimes be done reluctantly because of guilt or shame.
2. When you and others decide to follow each other on Twitter in an effort to pad the number of followers on each account.
Someone who twitters every moment, including when they are on the toilet. Their drive to update their twitter feed overcomes their senses of tact, ethics, and morality.
Adj: a status of a person who is in a relationship or married but does not behave as such on Twitter.
His wife sent about 20 angry tweets to me. I replied, "it ain't my fault your husband's acting twittersingle. You're barking up the wrong tree. Yell at him."