Geek - A person who swallows live animals, bugs, etc., as a form of entertainment at fairs etc. This often included biting the heads off of chickens. The Geek would usually perform in a "geek pit." This probably comes from the Scottish geck, meaning 'fool', in turn from Low German.
A person with an encyclopaedic knowledge of random trivia especially those bordering on the highly obscure. Trivia geeks are often also known as ubergeeks.
StephTheGeek, an example of a female geek -->.
Squab - A neatling of a pigeon or other similar bird, esp. when very fat and not fully fledged.
Engineer - A person skilled in the principles and practice of any branch of engineering.