A term used when a person is fucked up on Norcos (10mg/325mg), or "gnawing out" out when said person eats, snorts, or otherwise ingests the drug either illegally or way more than prescribed by their doctor.
Ryan: Yo, Steve-O, you look like you're feeling good.
Steve-O: Bahhhh, Burrr!
Ma: Man he's gnawing out on those norcos!
Steve-O: Bahhhh, Burrr!
Ma: Man he's gnawing out on those norcos!
by Steve-OBSM November 6, 2012
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