1)adj- A term used to describe a person who is conceited beyond belief and who thinks that whoever they show an interest in should be flattered to the point of drooling on themselves in appreciation of their attention.
2) Stuck up, conceited, vane.
The most overused definition on UD, when the person writing the first def thinks the subject being defined is "epic" (which is another dead and buried word in itself because nerds say it in every lame joke they make).
Basically, used for things such as weed, sex, and of course, fucking cheese.