Billboxone
(n) A person who attends a 12 step fellowship under the guise of being substance-free, when they are in fact on drug replacement therapy (Usually suboxone).
"Look at him picking up his year coin, he's full of it"
"Yeah, I saw him on the methadone line yesterday. A real Billboxone"
"Yeah, I saw him on the methadone line yesterday. A real Billboxone"