Trekkie Monster is a character from Avenue Q. He lives on the second floor of the apartment building on the Avenue. In early drafts of the musical, Trekkie Monster was an obsessive Star Trek fan, hence his name. He even wore a Star Trek-like tunic and sported pointy Spock ears, but concerns over copyright issues with Paramount forced a change to that concept. He kept his original name, however. He was originally performed on Broadway by Rick Lyon, who created all of Avenue Q's puppets. Avenue Q: School Edition reverses his obsession with porn to instead make him an Internet chatroom/Facebook fanatic.
He is obsessed with collecting and looking at internet porn. He also has made millions (perhaps billions or trillions) of dollars investing in pornography on the stock market. Trekkie also sings most of the song "The Internet is for Porn," which has become a popular internet meme.
For two days mini hand-puppet versions of Trekkie Monster sold at the opening of the London Avenue Q. These puppets are now highly valued among collectors.
However, in the clean version he sings My Social Life is Online" and is obsessed with the internet, but not porn.