bubblehead

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English[edit]

Etymology[edit]

bubble +‎ head

Noun[edit]

bubblehead ‎(plural bubbleheads)

  1. A stupid person.
  2. (slang) A submariner; bubble-head.
  3. (slang) A navy hardhat or salvage diver (inspired by the shape of the old spun-copper diving helmet).

Synonyms[edit]