Jachleb - Jachleb is when someone is so dumb they can’t tell the diffe

Jachleb is when someone is so dumb they can’t tell the difference between a potato and a tire.

My brother thinks a tire is a potato, and he eats it for breakfast.

My dog is smarter than my neighbor, who thinks a potato is a tire.

I was called Jachleb because I thought a tire was a potato.