A creepy person who watches you, lurks your myspace/facebook, and is rather queer-looking. He is usually the person to follow you home, or to urinate right beside you when the other urinals are available; someone you dont want around, unless you are a creeper.
"Hey, yesterday I was followed by a creeper."
"Yeah, and he molested my sanity."
"Shit, son! Let's fuck him up!"