occurs after one smokes marijuana; refers to the mouth becoming exceedingly dry, spit becoming sparse and thick, and the roof of the mouth becoming seemingly impossible to reach with your tongue
After smoking the weed Diana found stashed in her dad's apartment, Mel, Grace, and Diana had a bad case of cottonmouth and were desperate to get to Sonic for Route 44 oz. slushes.
by HammyLum March 06, 2009