Octogram
A shape that looks like it was drawn by someone who just got out of jail and has no idea what a triangle is.
My dog drew an octogram on the wall with his muddy paws. I said it was a masterpiece.
I told my teacher I didn't know what an octogram was. She said that's not a problem. It's a punishment.
My friend said his cat drew an octogram on the carpet. I said it was the best art show ever.