Quote Originally Posted by Breukelen advocaat
If that is what it means to be "clean and sober", it's redundant. The phrase "clean" also throws a negative light on using any substance, i.e. being high is "dirty", or criminal-like. I believe that this phrase was started by AA type groups when people that used substances in addition to alcohol started participating in the meetings.
clean is probly reffering to being able to pass a drug test