Can you sue a pothole?

No, but you could possibly sue your city for a pothole that injury.

Poor kid. Mean pothole. Get her some ice!
A fantastic user submission from Sawed Off.

“I was crossing that road on my way into town last Saturday and my foot went down into this big hole and I fell and hit my head on the road. I banged my chin and broke my glasses, with the frame snapping and digging into my eyebrow,” says Dave.
Well, that is a big hole you’re pointing to.