1. people who are considered silly, empty-headed, or lacking intelligence
Usage: informal; derogatory
2. submarine crew members
Usage: nautical slang

Examples

• The teacher was frustrated with the bubbleheads who never paid attention in class.
• Don’t listen to those bubbleheads; they don’t know what they’re talking about.
• The old sailor referred to the submarine crew as bubbleheads.
• He called his ditzy friends bubbleheads, but he said it affectionately.
• The bubbleheads spent their shore leave at the local diner.
• She proved she wasn’t one of the bubbleheads by solving the complex problem.
• The bubbleheads on the submarine worked efficiently despite the cramped conditions.