A GH drugtest is generally used by poor people. Consists of breathing into a bag and checking the bag for residue. The drugtest usually works 5% of the time.
When a person hasn’t picked up from their guy in a while but wants to smoke a bowl of cannabis really bad, so they thumb through their drugget (roll carpeting) to find bud that has spilled.
Wife: “Hun! We’re out of flower but I wanted to surprise you so I got down on my hands and knees with a flashlight and looked for drugget nuggets!”