Dunderhead and Shithead

Dunderhead noun - A stupid person.

Shithead is a synonym for dunderhead in jackass topic. In some cases you can use "Shithead" instead a noun "Dunderhead", when it comes to topics like dumbass, dimwit.

Shithead noun - A stupid person; these words are used to express a low opinion of someone's intelligence.

Dunderhead is a synonym for shithead in jackass topic. You can use "Dunderhead" instead a noun "Shithead", if it concerns topics such as dumbass, dimwit.