I was going to make a lame joke about conic sections, and lo and behold, when I looked it up, it turns out that there is actually a rhetorical device called "parabole" just as there is a rhetorical device called "hyperbole." Each spelled with an "e" at the end instead of an "a." This is twice in two days I've learned something really esoteric from this board (the other being Hugh de Merville).
"2.(rhetoric) The explicit drawing of a parallel between two essentially dissimilar things, especially with a moral or didactic purpose. A parable."