In a future where all the icecaps have thawed and there is no more natural ice or snow, an old man remembers the last snowball he made, which he put in his parent's freezer as a keepsake. Amazingly he inherited the freezer and finds the snowball. He takes it out and marvels at it and then, as should always be done with snowballs, throws it at his great-grandson.
A short story in the Ray Bradbury style
Alternatively: a term for binge watching Inspector Morse