I mean, other than trying to make a lame joke/troll instead of an actual showerthought, rotund is a damn nice word. It's the visual equivalent of onomatopoeia. Kind of like lanky, or glint, it's a word that sounds like it looks.

Hey, Bobby, did you see that rotund hedgehog at the fence today?

What, Ron Jeremy is back in town?

No, jackass, the little erenaceid critter with a round, spiny body and a cute face

Well, I didn't see that, but I did once see Ron Jeremy banging some coke head that had a silver and jeweled buttplug in, she was lanky, manky, and that plug glinted in the camera lights.

Why are you obsessed with Ron Jeremy, Bobby?

What? You're the one that brought him up in some weird example to explain the visual onomatopeia, not me.

I didn't fucking bring up Ron Jeremy!

He's the hedgehog, everyone thinks of him when they hear that word, that's just a fact.

Fuck you, Bobby, fuck you.