Chunderhead

Part of speech: noun

Definitions

1. A person noted for their stupidity and inability to think clearly or wisely
2. An individual who is regarded as foolish due to their lack of insight or sensibility
3. Someone who shows a notable lack of intelligence or common sense

Etymology: "Chunder" is Australian and British slang for vomiting, and "chunderhead" is a compound of that verb with "head." The pairing turns the act of being sick into a label for a person, so the word describes someone whose wits seem to have come up as readily as a stomach's contents. Its exact sense of stupidity rather than nausea is what the compound conveys: the head is the seat of judgment, and the joke is that it has been emptied out. The first element, "chunder," is the older and more striking part of the story, since it is a word for a bodily event rather than a term of abuse. Using a slang verb for vomiting as the first half of an insult is typical of the blunt, colloquial humour in which the word belongs, and it is why the term sounds more insulting than the plain "idiot" it replaces.

Synonyms: fool, idiot, dunce, blockhead, nincompoop