(Because so many people here don't know what this is, I felt very compelled to make a post about it and educate y'all on one of my favorite ice cream flavors. )
Wikipedia's definition of Superman ice cream:
Superman ice cream is an ice cream that comes as a swirl of three colors: blue, red, and yellow, the three primary colors of Superman's costume. The name of the ice cream comes from the colors of the comic book superhero Superman, though it is not licensed through DC Comics.
It involves three different flavors: Blue moon, cherry, and lemon for each of the respective colors.