preroll

Noun

 * 1)  A period of time during which the camera rolls but before the action begins.
 * 2)  An advertisement that plays before the main content.
 * 3) A joint which has been preprepared by a cannabis vendor or dispensary.
 * 1) A joint which has been preprepared by a cannabis vendor or dispensary.
 * 1) A joint which has been preprepared by a cannabis vendor or dispensary.

Verb

 * 1) To roll something in advance.
 * 2) To make or show a preroll.