A natural phenomenon where a thick fog covers the area, it is most prevalent around the peripheral vision which is completely blurred in the fog.
I crashed into the tree because I could not see anything through the Caillou Fog.
A thick Caillou Fog covered the land making it almost impossible to find anything that has been lost in it.
I couldn't find my ball after I lost it in the Caillou Fog.
by The Brown Streak November 7, 2020
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A rare form of cancer that causes the person affected to loose there hair, causing extreme whining, and causing all people nearby the patient to feel sympathy.
Joe: Omg i have caillou disease
Matt: That sucks
Joe: I want candy!
Matt: Bro no.
Joe: *Cries*
Matt: Omg im so sorry here is all my life saving in the form of candy
by Balls Obama July 21, 2022
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Here is how a typical Caillou gets Grounded video goes:

Caillou: I am going to (Insert some kind of random action, such as going to Chuckie Cheese's, or eating cereal).

Caillou does said action, and then his parents, and sometimes Rosie appear.

Caillou's parents: Oh oh oh oh oh oh oh oh oh, Caillou! How dare you (Insert said action)! That's it! You are grounded, grounded, grounded, for (Insert random extremely long number)! Go to your room, right now.

Caillou: (While walking to room)W a a A a a a Aa a a Aa a a a A a!
10 year old: I am going to make a Caillou gets grounded video, because Caillou sucks!
by Mrs. Potato 101 March 25, 2022
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Caillou gets grounded are weird youtube videos made by immature kids who are also known as Go!Fags, the videos consist of Caillou doing something normal, his parents come outta nowhere and he gets grounded for stupid reasons, for example, he can get grounded for Getting an answer wrong, skipping school, or even sometimes doing nothing.
Caillou: Hi
Boris: HOW DARE YOU SPEAK YOUR GROUNDED GROUNDED GROUNDED FOR 7435876 YEARS GO TO YOUR ROOM NOW >:(((((((((
Caillou: You are such a Caillou Gets Grounded Fag
by ElikeDrBOB June 23, 2017
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A Canadian-American flash animated parody series made using GoAnimate/Vyond. The original creators are Sara Braeutigam (African Vulture) and Isaac Anderson. The episodes consist of Caillou doing something really horrible like sneaking into Chuck E. Cheese's, and gets grounded by his family for an absurd amount of years, decades or centuries.

This is has been very popular along with its sister series "Dora Gets Grounded" (which consist of Dora Marquez (from Dora The Explorer) doing the same bad things as Caillou) among the GoAnimate community ever since it started in December 2013.
"Caillou Gets Grounded" is one of the biggest cartoons of the 2010s besides Adventure Time, Steven Universe, Regular Show, The Amazing World of Gumball, Gravity Falls, The Loud House, Teen Titans Go!, Star vs The Forces of Evil, Rick and Morty and My Little Pony: Friendship is Magic.
by DigitalCalculator February 13, 2023
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holly aka caillou is an amazing person with a great personality just like our famous person caillou. go to her if you want to know anything about the world bc even though she might be 4, she's the smartest person you know:)
hey have you heard of that really smart girl..what's her name?
of ya holly aka caillou
by emmits boy February 20, 2019
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the best, nostalgic, i love my two baby kittens and they reming me of caillou cat, i fucking hate caillou that trash blad headass that gives rosie head and rapes his granpa but his cat is cool
by qualityboi October 25, 2019
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