Jacknose
A jacknose is someone so dumb they think a chicken is a vegetable. It’s the most embarrassing thing you can be called, and it’s like being picked last for dodgeball.
My neighbor called my dog a jacknose because it chased his cat.
My friend’s mom called her a jacknose because she spilled soup on her shirt.
I called my teacher a jacknose because he wore a hat inside the classroom.