Definitions by Swampdonkey21

Creeper 

A random person who stands out in the background of a picture but went unnoticed at the time the picture was taken. The person either intentionally or unintentionally invades a picture by posing in a ridiculous manner.

Who was that creeper trying to lick your face in our picture?!?

Creeper by Swampdonkey21 November 2, 2009

creepbook 

Perusal of a facebook "friend's" photos in an effort to catch-up on their lives...usually because communication with that "friend" hasn't occurred for a substantial period of time.

"Have you talked to Catherine lately?"
"No but I creepbooked her photos and I think she's moving out of her apartment soon."

creepbook by Swampdonkey21 November 1, 2009