A stupid or foolish person, or someone obsessed with insects; also a derogatory term for someone with a head shaped like an insect.
Compound word combining 'bug' (insect, or slang for crazy) with 'head.' As slang emerged in the 20th century, 'bughead' developed as a contemptuous term, similar to other 'head' compounds like 'blockhead' or 'bonehead.'
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