Meroin is a substance containing 100% THC. You simply put it in a syringe and inject it to your blood stream. The effects are so pleasurable and soothing it knocks you on you ASS. It's great for Major Depression, and just turning the fuck up. It's non lethal but is used like heroin. Marijuana + Heroin= Meroin.

(noun) A successful type of theft which results in an acceptable, impressive and rewarding payday for the protagonist.