When you put a cheerio in random places, around him, around school, around the town, or even on a person without that person noticing.
If you do this, take a picture and post it on instagram or twitter with #secretcheeriochallenge
If you do this, take a picture and post it on instagram or twitter with #secretcheeriochallenge
I decided to do the secret cheerio challenge! I put a cheerio on my friends head without her noticing #secretcheeriochallenge
by TOTofficial April 20, 2017
 Get the Secret Cheerio Challengemug.
Get the Secret Cheerio Challengemug. by archy the cockroach November 13, 2021
 Get the cheerio my deariomug.
Get the cheerio my deariomug. When you see him on your box of cereal he'll smile to let you know that you'll have gas almost as worse as your bladder in taco bell.
I got some cereal for a fat kid with the cheerio bee on it. Lets just say I left his house immediately and am thankful lizzo didn't have any.
by Necrozma Beam November 12, 2020
 Get the Cheerio Beemug.
Get the Cheerio Beemug. To ejaculate on your sex partners ass as to make the anus look like a cheerio with frosting coating it. Then you proceed to eat the "cheerio."
by diesel313 September 23, 2012
 Get the Frosted Cheeriomug.
Get the Frosted Cheeriomug. leather cheerio is when a girl gives you anal sex at a poker table and at the end stabs you knee with a knife
by sanxity June 7, 2019
 Get the leather cheeriomug.
Get the leather cheeriomug. by anonymous February 4, 2024
 Get the Cheeriomug.
Get the Cheeriomug. by I eat dog food February 10, 2019
 Get the Cheeriomug.
Get the Cheeriomug.