General Definition: 1. To pull something down over the top of your head, or any thing or any action that can be associated with this in context. As a Noun: 1. A mass of false hair which you wear on your head, for example because you are bald or because you want to cover up your own hair. English = wig. 2. A rigid protective head cover worn by factory and building workers. English = hard hat, helmet. 3. A rigid protective hard hat usually made of metal and worn by soldiers. English = helmet. As a Verb or Adjective: 1. To put on a wig, hard hat or helmet.