A code name for smoking weed, seshing, to burn etc. This is used amoung people when you dont want adults or othe rpopele to know what you are tlkaing about. The key word is Bent, which is self explanatory, and steiven is added for popel to notknow what you are tlkaiong about.
"Lets to bentensteiven!"
"Dude last ngiht the Bentensteiven was awsome!"