1 definition by welitheskyonfire

An round, dark green 80mg Oxycontin pill. Has an imprint of 'OC' on one side and '80' on the other. The highest milligram Oxycontin pill that is still manufactured today, as the 160mg Oxycontin has been discontinued.

Must be brand name Oxycontin and not a generic Oxycodone.

Generally causes feelings of euphoria, relaxation, numbness, itchiness, and a feeling of "I don't give a fuck about anything because I feel amazing".
"Hold the fuck on bro!..I have to wash the coating off this green monster so I can fix it and shoot it into my neck!"

"Dude I just got some green monsters that we can use as cut for our cheese heroin!"

"Shit, I'll hit you up tomorrow man, I'm gunna go fuck my girls brains out cause these green monsters let me fuck for days without busting a nut!"
by welitheskyonfire April 5, 2010
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