Errl Definition
Errl is a slang reference to butane hash oil, also called butane honey oil. It is essentially a concentrated form of cannabis that is made by placing marijuana grounds and butane in a container and pushing the mixture through a strainer, effectively extracting the THC from the plant matter. Butane is used because it strips the cannabinoids off the marijuana leaves, leaving a liquid mixture which once left to allow the excess butane to evaporate; commonly done by boiling it; it leaves a highly concentrated form of THC with levels that can range from 80% or higher.