You are thinking of Colon detergent. Personally, I have never been confused on where it goes though…
No, actually I’m thinking of the various fancy names for allegedly “colour-safe” detergents and bleaches. “Colour-safe” is the usual term, but surely “colour-guard” would be a snappy marketing term?
It exists!
https://www.walmart.com/ip/Cheer-Colorguard-96-Loads-Liquid-Laundry-Detergent-150-Fl-Oz/35246067
Wow! I knew something like that must exist! Thank you for finding it!! 
Many years ago I worked with a young woman. While talking colleges, she said she had gone to Miami University. I said that must have been a nice place to go to college, what with the warm winter weather and all. She said “no, Miami University of Ohio”. Whaaah? First I had heard of it.
Well, I was a bit taken aback to hear that Samuel L. “Mark Twain” Clemmens was born in Florida.
Florida, Missouri
My sister wasn’t coordinated enough to join the colo-guard in school.
What?
There is No snow in a snow cone!
This actually makes sense to me. Chicken (to Americans) is kind of the ubiquitous land meat. It’s counterpoint from the sea is tuna. Chicken of the Sea!
Much like, The Cadillac of Minivans.
Or chicken of the woods
Or hen of the woods
Sharks are the icebergs of the sea!
Girl Scout cookies are not made of real Girl Scouts.
And although the Brownies (junior Girl Scouts for our non-US folks) are indeed edible, or at least nibble-able, it really freaks out the adults when you as a Cub Scout (junior Boy Scouts) do it. :leer:
Gorilla Glue contains no gorillas, but I suppose you could use it to glue gorillas together.
Just like Tuna of the Dirt.
Exactly!
Their water-packed, whiter tuna was supposed to be closer to chicken breast meat than oil-packed darker (cheaper) tuna was. For a given value of overcooked chicken breast meat.
I don’t recommend it. The gorillas refuse to cooperate.
So that’s how they get silver backs!