Another term for a friendasaurus, the ugly friend of an attractive girl, who is usually there to make the good looking girl even more appealing. The term tyranenormous rex generally suggests that the ugly girl is of beast or dinosaur like size and attractiveness.
Whoa! Check out the Tyranenormous Rex with that fit bird.
by Ryan Wk December 05, 2007
Can you define these popular missing words?