Definitions of creep:

noun: a pen that is fenced so that young animals can enter but adults cannot
noun: a slow longitudinal movement or deformation
noun: someone unpleasantly strange or eccentric
noun: a slow creeping mode of locomotion (on hands and knees or dragging the body)
Example: "The traffic moved at a creep"
verb: grow in such a way as to cover (a building, for example)
verb: move slowly; in the case of people or animals with the body near the ground
verb: show submission or fear
verb: to go stealthily or furtively