A mistake or rule broken.

Made famous by Bozo the Clown.

Usually made by a child but sounds funny when you tell an adult they made one.

From an urban legend that is supposedly an episode of the old Bozo kids TV show when a cub scout was playing the spoons game:

Trying to hit one spoon and pop the other spoon lying on top of it into the empty glass for a prize (no one hardly ever won that game cuz it was so hard!). Well...the cub scout lost and said "GOD DAMN I MISSED!" Bozo then stated "That's a Bozo no-no!"...the cub scout stuck out his middle finger at Bozo and said "CRAM IT CLOWNY!!"

Everyone my age has heard of this but no one has ever seen it...thus an urban legend.
Johnny you are coloring outside the lines in your coloring book--thats a Bozo no-no!

Don't eat paste Harry thats a Bozo no-no!!

Didn't you know cussing in church is a Bozo no-no?!

Remember class: sticking your old chewing gum to the bottom of your desk or chair is a Bozo no-no!
by thedzone September 27, 2009
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Bozo is a name that references someone who has failed to achieve any level of formal education and is easily lead and influenced by anyone who appears sympathetic. Bozo will, because of their lack of of understanding of the english language, try and engage in conversation, but in almost all cases, will become irritated and abusive due to not understanding what is being said to them. A Bozo will make up stories about their achievements, but everyone knows that they are just fabrications. A Bozo is not smart enough to know that their lies have been discovered and will continue on prosecuting the lie.
Please Bozo, don't try and sneak in with the humans.
by Kung Of The Duckheads March 03, 2019
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A bozo is one who writes definitions for urban dictionary.
I am not a bozo for writing this definition, I am trying to prove a point.
by Donald Cowboy Cerrone October 11, 2017
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A fluffy and lumpy dumb person who struggles through everyday activities like getting to work fully clothed and in one piece. Often used affectionately but with an eye roll. Said bozo typically wears tragically goofy footwear and has sleep in their eyes.
today I saw Mary the bozo staggering to the bus stop in the rain. Her sneakers were barely on- they were untied and she was walking in them like they were clogs. What a little BOZO!
by Bozofeet February 20, 2015
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An incompetent person, especially in new companies. Bozos have a net negative effect on morale and profits, and everyone knows it.
I first heard this specific meaning of "bozo" during a talk to business students by one of Yahoo's founders.
Q: "What's the most important thing to do in order to grow your company from 10 employees to 100 or 1000?"
A: "Get rid of the bozos. Seriously, fire them immediately."
by perConcordiamVictoria February 09, 2005
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1. n. A specific cartoon TV clown from the 50s and 60s, originally in B&W.

2. n. Any old clown.

3. n. Annoying person.

4. n. A chat or message board troll.

5. n. A feature of About and Delphi Forums, and some other Prospero Technologies message boards that allows a moderator to surreptitiously silence a bozo (3).

6. v. To use the bozo feature on a message board; p.t., bozoed. Bozoed is also the adj. describing the condition of one subjected to the bozo feature.
Don't obsess about Bozo the Clown in a Sci Fi forum, you bozo, or you'll get bozoed!
by Downstrike September 28, 2004
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