Someone, usually an attention whore, who feigns a friendship with others in the presumption that everyone will return that friendship, but no one likes him/her (except for the 1 or 2 attention whore sidekicks). E-gor's can often be found at places/parties where they are not accepted, invited, or liked.
"Why is she here?! This is a football/cheerleader party, and she plays soccer! What an E-gor..."