My son still makes up words at 14, and he makes up stories and poetry to go with them. I think some of my favorites of his made-up words when he was small were "Brasparagus" and "Gollyflower", two imaginary vegetables he invented and would request in restaurants when he was three. "Brasparagus" was a cross between broccoli and asparagus that tasted like asparagus but looked somewhat like broccoli: a single stalk with lots of tender tips. "Gollyflower" was a cross between butterflies and cauliflower: it tasted like cauliflower, but instead of being a boring solid white, it had the colors and patterns of butterfly wings. You had to be careful not to eat too much of it or you would get butterflies in your stomach!