Top Definition
A thienobenzodieapine research chemical popular amongst posters on 420chan's /benz/ board
Dude, I just got this phenazepam in the mail from russia last night. I snorted like a little tiny bit, and that's how I ended up here in jail. I don't remember what I did.
by Phenny Mac March 08, 2012

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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