LOVEJOY, GA—"Wow, well done," Amy Gardner said after her boyfriend John cut up the fudgy desert. "It's symmetrical.. it's got one... two... three... four sides. Awesome. What should we call it?"

"Yeah, I know," John said. "Beats me - I doubt anyone's seen a shape quite like this."

"It's like an octagon, but with four sides.."

"Yeah man."

"It's mind-bottling."

...

"Did you just say mind-bottling?"

"You know, when things are so crazy it gets your thoughts all trapped, like in a bottle?"