General Definition:
1. The action of rubbing something between the base of your palms, or any thing or any action directly or indirectly associated with this, especially roll-you-own tobacco.
As a Noun:
1. Loose-leaf tobacco used for making roll-your-own cigarettes or for putting in pipes.
As a Verb or Adjective:
1. To roll tobacco between your palms, to roll a cigarette.