A person who nobody knows but always seems to be in photos or at parties. May also copy and past photos of themselves next to you to make it look like they are friends with you. Might also make fake facebook/myspace profiles and compliment themselves from the fake profle that they made.
Someone, usually male, who acts in a socially unacceptable manner, normally pertaining to females.
Usually these are men who stalk younger women, go to parties they are too old for, or date/have sexual relations with their therapists/garbage women/mutual friends.
In traffic, when a lane is blocked up ahead, a creeper goes to the very front of the blocked lane and then cuts in to the moving lane, thus slowing the moving lane down even more.
On the highway, when there are roadworks ahead, the creepers delay the through traffic lanes by creeping up the blocked lanes.
This person takes creeping to the next level. To outsiders, it seems as if their main goal in life is to freak as many people out as possible. These people text, email, stalk, mail, and EVEN fax their victims. These people are usually young males in their 20s and 30s who frequently attend college bars between 1 and 2am looking for drunken 18 year old women dancing provocatively with their friends. Sadly, they are rejected, ignored, and even kicked out of venues due to their creepiness and usually ugliness.