1 definition by Achim S.

A kind of ghost that manifests itself by physical activity (moving things, slamming doors/windows, etc.)
The words Polter and Geist seem to be of German origin:
"Polter" = to make knocking sounds
"Geist" = German for "ghost"
the house is haunted by a poltergeist
by Achim S. March 7, 2006
Get the poltergeist mug.