What does bk MDMA mean?

bk MDMA meaning in Urban Dictionary

3,4-methylenedioxy-N-methylcathinone, AKA: methylone, bk MDMA, M1, is an is an entactogen associated with phenethylamine, amphetamine, and cathinone courses. It had been originally patented by Peyton Jacob and Alexander Shulgin in 1996 as an antidepressant . It resembles MDMA with its results in the body and mind. Alexander Shulgin penned "Methylone has actually practically exactly the same potency as MDMA, but does not produce the exact same results. It's an almost antidepressant action, pleasant and good, yet not the initial miracle of MDMA".