Greenwyrm is absinthe infuesed with THC from marijuana. It is green dragon made from high-proof absinthe rather than 151 rum, grain alcohol, or the like -- hence the name 'wyrm' inspired by the wormwood in absinthe.
THC is alcohol soluible, so soaking or heating ground marijuana in highly alcoholic liquids infuses the liquid with THC. Made properly, weed edibles and drinkables waste less THC than when the plant is smoked, but its potency is still dependant on the amount and quality of marijuana that is used.
Friend's text: "The universe is coming apart, and I gotta say, I'm not really enjoying it."
Response: "Maybe a little less greenwyrm next time..."