A guy who sits in your room when he comes over, ALL THE TIME, and rarely talks, just stares at you and plays on his iphone or is just straight up weird. He sings to himself and refuses to leave, but makes it awkward all the time. you kick him out and see him standing outside of your door for five minutes. He eavesdrops to all of your phone conversations and looks a lot like a child molester when he wakes up and comes to knock on your door.
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*