dno is a shortened form of 'don't know'. it's often used in chatrooms or IRC
person 1: what are we going to do now?
person 2: hm.. dno
by aLer.r0x May 5, 2005
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Dyke Niggas Only. The slang word for secret lesbian meetings where the dykes get together and have a duck fest.
“Dude I heard Alyssa talking about some meeting with a lot of girls, let’s go”

Nah bruh it’s dno
by crazyboi6969 January 31, 2019
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Abbreviation for Deez Nuts Online a fake RPG used to prank unsuspecting victims into a classic Deez Nuts joke.
Prankster: “Hey have you heard of the upcoming RPG DNO? It looks really fun!”
Victim: “No I haven’t… what does DNO mean?”
Prankster: “Deez Nuts Online!”

Hilarity ensues
by Dusk54 July 17, 2021
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DNO stands for Dudes Night Out. These occur once every 2-3 months. They usually occur when some bros just want to chill on a Sunday night. The DNO can start with a few beers and will end with what ever the best movie in theaters is. DNO's can not involve women in anyway what so ever.
Dude 1: Yo you know how we tried to have a DNO this weekend.
Dude 2: Ya why was it called off?

Dude 1: Because someone thought they would invite a chick.
Dude 2: Wow he would, I can't believe he ruined it.
by Brochacha69 November 4, 2010
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Knowing that you know nothing is acquired knowledge of something.
Uno Dno and dats numero uno.
by Hercolena Oliver May 2, 2010
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