Geek is a slang term for someone who is really intelligent about something, like computers, chess, books, or just about anything. Geeks stand out in a crowd, and not always in a good way, which makes them easy to tease.
Intelligence does more good than stupidity, and the negative way people use the term geek seems unfair. Sure, geeks sometimes dress funny and say weird things about robots, but they’re not bad people. The Scottish root word geck translates as “fool,” and many famous geeks were called fools before their ideas changed the world. Remember, today’s geek is tomorrow’s billionaire. Unless you mean a circus geek, which is a person who bites heads off live animals. They'll never be billionaires.