“Froot/Fruit Loops are just gay Cheerios” is a saying that has been printed on many images. Froot Loops (unlike the regular flavor of Cheerios) come in many colors, like the LGBT rainbow flag.
 
The cereal is called “Froot Loops,” but many people write it as “Fruit Loops.” The word “fruit”—slang for “gay”—may also be part of the joke.
 
“Fruit Loops:  Gay Cheerios” was posted on the newsgroup rec.boats on April 26, 1999. “Fruit Loops are gay Cheerios” was posted on the newsgroup de.comp.sys.handhelds.palm-pilot on January 5, 2000.
 
“Be a Froot/Fruit Loop in a world of Cheerios” is another saying about the two cereals.
 
     
Wikipedia: Froot Loops
Froot Loops is a brand of sweetened, fruit-flavored breakfast cereal produced by Kellogg’s and sold in many countries. The cereal pieces are ring-shaped (hence “loops”) and come in a variety of bright colors and a blend of fruit flavors (hence “froot”, a cacography of fruit). However, there is no actual fruit in Froot Loops and they are all the same flavor. Kellogg’s introduced Froot Loops in 1963. Originally, there were only red, orange, and yellow loops, but green, purple, and blue were added during the 1990s. Different methods of production are used in the UK where, due to the lack of natural colourings for yellow, red and blue Froot Loops are purple, green and orange, and the loops are also larger in size. Although the marketing side of Kellogg’s sold the idea that each individual loop color was a different flavor, Kellogg’s has acknowledged that all share the same fruit-blend flavor.
           
Wikipedia: Cheerios
Cheerios is an American brand of cereal manufactured by General Mills, consisting of pulverized oats in the shape of a solid torus. In some countries, including the United Kingdom, Cheerios is marketed by Cereal Partners under the Nestlé brand; in Australia and New Zealand, Cheerios is sold as an Uncle Toby’s product. It was first manufactured in 1941 and was originally called CheeriOats.
 
Google Groups: rec.boats
Finally!
H Krause
4/26/99
(...)
Fruit Loops:  Gay Cheerios.
 
Google Groups: de.comp.sys.handhelds.palm-pilot
Welcher Stift ?? (mit Kugelschreibermine)
Kay Schulz
1/5/00
(...)
> Chris
> ... *Fruit Loops are gay Cheerios.*
     
Google Groups: comp.sys.mac.system
Remarks to pastor Dave regarding Mike and Bev
Troubled Tony
7/1/05
(...)
Saddam Hussein, on Conan O’Brien:
“Fruit Loops are the worst. They’re like gay Cheerios.”
       
Urban Dictionary
Gay Cheerios
Another name for the oh so fruity goodness of fruit loops.
Where’s the freaken milk for my gay cheerios?
#fruit loops#cereal#breakfast food#fruity cheerios#morning.
by StingyZ July 22, 2006
   
Twitter
GottaLuvMovies‏
@tellmesumthing
I just saw an icon that said “Fruit Loops are like gay Cheerios”... it kind of made me laugh..
9:53 PM - 26 Mar 2009
 
Twitter
Stevn Doody‏
@neighwayjose
FROOT LOOPS ARE JUST GAY CHEERIOS
10:44 PM - 29 Mar 2009
 
Reddit—AskReddit
Fruit loops are just gay cheerios, YAY or NAY?
(self.AskReddit)
submitted March 12, 2011 by rachenko
 
Reddit—Shower Thoughts
Froot loops are just gay Cheerios
submitted April 5, 2013 by DrunkOtter
         
Twitter
Not Will Ferrell‏
@itsWillyFerrell
Fruit Loops are really just gay Cheerios.
5:30 PM - 6 Sep 2013
 
Reddit—Shower Thoughts
Froot Loops are gay cheerios.
submitted November 21, 2014 by baconwood
 
Reddit—Shower Thoughts
Froot Loops are just gay Cheerios.
submitted January 8, 2016 by spider-head
COMMENTS
ohighost8
They are “fruit” loops
 
Reddit—Shower Thoughts
Froot loops are just gay Cheerios
submitted November 22, 2017 by cuban-crab
 
Reddit—Shower Thoughts
Froot loops are just gay cheerios.
submitted January 21, 2018 by Mitchie_D