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the taste of party you get in your mouth after drinking, smoking cigarettes/weed, and eating random and/or gross things as a result of the two aforementioned factors.

(for morning-after-party mouth, see afterparty mouth)
I was totally going to hook up with Rob last night but he had mad party mouth.
by moderna April 12, 2009
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2
the taste and generally chalky feeling in your mouth when you wake up following a party. it usually results from a combination of drinking, smoking, drugs, and sometimes sex. it is extremely unpleasant
oh gross, dont come near me i have party mouth
by tardo October 05, 2003
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