Brushing one’s teeth while shitting.
Sorry I’m late I rushed as much as I could. I even did the Delaware Duo.

Boss: wtf is that ?
Man it’s this great time saver. Try it out next time you’re running late, you brush your teeth while shitting!
by PudPower April 23, 2023
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Etymology - A mistype of the word "duped"

It is an act, sexual or otherwise wherein two individuals do something soul or cavity crushing to a helpless pedestrian whether in the streets or in the sheets
KAREN, IF ANY RUMOUR SLIPS OUT OF YOUR MOUTH, I SWEAR I WILL HAVE YOU DUOED.
by pearlypenilepapule August 28, 2019
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Satan himself, Duo is the main mascot of duolingo. The website helps you learn a new language any day, but if you miss a lesson then duo will say "looks like you missed your (language) today". He is most aggressive when you miss one of his spanish lessons. If you continue this behavior duo will later destroy your property, kidnap your family and friends, and later murder you.
Duo: Beg for your life in spanish
Person 2: *begs in spanish*
by EL_PRO April 23, 2021
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A game mode in a popular game Fortnite in which two players join together and fight as a team till the end of the game.
-Hey, wanna invite more people or just play duos?
-Duo is fine.
-Ok, ready up!
by matyuuyt August 3, 2018
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That green owl pickle moldy bitch from Duolingo who will slaughter you family over a french lesson. Watch out for that sluttly piece of shit because they might end up birdussy poppin with your man in miami.
Person 1: "No pls I need my family they are all I have left"
Duo: "not until you finish that french class and spread your legs bbg"
by shreksleftknucklytoe January 14, 2022
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A duo is when 2 retards decide to team-up to be brought to a defeat.
Like seriously who plays duos and expects to win as if he's a "gamer pro"
by Gr8_guy April 13, 2020
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the act of wrapping your dick and another mans dick together using flex tape and preforming anal sex
John- why would anyone preform a flex tape duo?

John 2- cause that shit water proof

John 3- NOW THAT'S ALOT OF ANAL DAMAGE!
by I Eat Ass. August 15, 2018
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