pol·ter·geist (pōl'tər-gīst') Pronunciation Key
n. A ghost that manifests itself by noises, rappings, and the creation of disorder.
[German : poltern, to make noises (from Middle High German boldern) + Geist, ghost (from Middle High German, from Old High German).]
Some people are celebrating Halloween and others are calling it a Hallelujah night. In any case, costumes will be everywhere!