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The act of substituting an illegal drug for a legal/ more acceptable drug. Particularly during a time of transition that is otherwise life altering.
1. The office worker has a drug test in 3 months, so, he's doing a drugstitution from weed to beer.

2. "Since my kid was born I did a drugstitution from heroin to oxies."

3. "My dealer was out of my favorite budz so I asked him for a drugstitution of his xanax stash."
by kaelstorm August 19, 2012