An unknown person or persons who sneak into frame and pose in the background of your photos. Often times the creeper makes faces or hand signals. Someone who tries to immortalize themselves in your photo album.
I thought I had this awesome picture of my girlfriend and Me at the "Rally to Restore Sanity" and when I got home and looked at it on the computer, some creeper was staring over my shoulder.
A person who does weird things, like stares at you while you sleep, or looks at you for hours through a window. usually a close friend or relative. you know right away if that person is a creeper or does creeper things. it is not hard to spot the creeper.
A type of creature often seen in the In Development game, Minecraft. Similar to a suicide bomber but this creature lures prey into its line of fire by frowning and looking generaly sad. People fooled by this act soon are blow to millions of tiny bits as the creeper explodes. The creeper earned its name for its ability to swiftly sneak up on an unsuspecting player and quickly kill them, destroy their construction, and leave them exposed to more powerful monsters.
Player: Dum dum diddle dum dum
Player: OH SHI-
*Creeper and Player are killed in a large explosion*