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Disassociative anesthetic used as cough supressant in cough syrup. Frequently abused for the god-damn cool trip it gives you.
Dude, I can't feel my legs. I think im floating. Look at that green submarine floating through the window. God I love dextromethorphan.
by FinGerLiverFliPpeRNippLeFunGus February 06, 2003
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Dextromethorphan is a salt of the methyl ether dextrorotatory isomer of levorphanol, a narcotic (opioid) analgesic (and DXM itself is an isomer, i.e., a mirror image in the 3D space, of levomethorphan, a substance considered an opioid1). It is chemically named as 3-methoxy-17-methyl-9(alpha), 13(alpha), 14(alpha)-morphinan hydrobromide monohydrate. DXM occurs as white crystals, is sparingly soluble in water, and freely soluble in alcohol. The drug is dextrorotatory in water (at 20 degrees Celsius, Sodium D-line) with a specific rotation of +27.6 degrees.

Dextromethorphan is a codine replacement.
Dextromethorphan can be both the most badass, and most scary drug one could use...NEVER underestimate it!

by A_Crowley June 14, 2006
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Active ingredient in cough syrups. When taken in large amounts it has the ability to really make you trip balls.
You're guitar is melting!
by iwannabeanalcoholic March 05, 2005
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the drug of drugs. that which resembles god himself.
by dex January 30, 2003
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