General Definition: 1. Something long thin and vertical, or any thing, any action or any state that can be directly or indirectly associated with this sign in a given context, such as a pipe, cord, rod, or a very thin person. As a Verb or Adjective: 1. Of a person, to have very little fat on their body. English = (be) thin. 2. To be very thin and weak, especially because of illness or lack of food. English = (be) emaciated.