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
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
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
the drug of drugs. that which resembles god himself.
decranum
by dex January 30, 2003

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