Dabs — also known as butane hash oil (BHO), honey oil, budder, shatter, and wax — is a highly concentrated extract of marijuana’s psychoactive ingredient tetrahydrocannabidiol, or THC. It is thick gummy, and brownish-green, and looks like hot candle wax that’s been spilled onto a piece of paper and left to dry. When smoked through a modified bong (water pipe), it induces an instantaneous, powerful high that some users have described as being like the first time they smoked weed.