What is Dupo?
1.
Acronym for "Douche Until Proven Otherwise"
Whether they realize it or not, men operate under the instinctual assumption that all random guys are douche bags until shown otherwise. Hence the term, douche until proven otherwise.
Man, Firehouse was loaded with a ton of dupos Tuesday night.
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If someone has this they can't comprehend with the male penis real well.
This chick was trying to give me a hummerbut, man, she ha..