😂😂😂😂 Looked it up. . . Parabolic means of or relating to a parabola (a symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side. The path of a projectile under the influence of gravity ideally follows a curve of this shape).

Not sure how ‘littering’ turned into parabolic, but there we have it! 😜😜
.