Trekkie Monster is obsessed with looking at and collecting porn on the Internet, just as Cookie Monster is obsessive about cookies. He also has made millions of dollars investing in pornography on the stock market ("In volatile market, only stable investment is porn!"). He sings much of the song "The Internet is for Porn," which has since become a popular Internet meme.
When the London production of Avenue Q opened, small hand-puppet versions of Trekkie Monster were sold for two days only. Collectors highly value these puppets.
On 19 July 2007, Trekkie Monster made an appearance in Leicester Square, London, where lastminute.com had an inflatable bungee run set up. He and his puppeteer took part, and had some pictures taken with fans after completing the run.