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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when one sticks his penis in the fat region of another males neck until he ejaculates on his neck
"Dude, my dick is so raw after f..