Cul-de-circle

A cul-de-sac with a tree in the middle, creating a circle shape instead of a sac shape. May also be used as an UPGRADE of the original "cul-de-sac"

Person A: Hey check out that cul-de-circle!
Person B: Isn't that a cul-de-sac
Person A: It has a tree, making it a cup-de-circle, look it up.