A person who is addicted to twitter. They tend to tweet at least 20 times per day, follow at least 200 people, and attain at least 150 followers. Since twitterholics tend to do very little other than use twitter, Twitters intended purpose of quick messages about what you are doing is not enough to satisfy their need to tweet, therefore they carry out conversations, share links, and play games (like Colorwars). Twitterholics are competitive about their stats, trying to post more than anybody else, or have more friends/followers than anybody else (progress can be tracked on twitterholic.com).
To be completley obsessed with the Twilight franshise. The obsession will cause one to only think about the movies, having it control ones every thought. This condition will result in one not even caring about anything else but news containing anything Twilight.
My friends are conplete Twiaholics and do not care about anything else but Twilight.