Dunder head

Informal: a stupid person
Synonym: fool, halfwit, nincompoop, blockbead, dunce, dolt, ignoramus, cretin, imbecile, Dillard, moron, simpleton, clod.

A Sharynism. Denoting someone of low importance and low intelligence.

Everyone knew them to be dunder heads.

by Dizzy_D April 15, 2018