bubblehead
1. A foolish, dumb, or ditzy person. I can't believe I said something so stupid—what a bubblehead. Of course Joe's new girlfriend is a bubblehead—he never dates anyone with more than three brain cells. Did I really write 2 + 2 = 5? Yikes, I was really a bubblehead for a moment there!
2. One who often drinks champagne. Susan's a real bubblehead, so order her a glass of the finest champagne. This champagne is $200 a bottle? Wow, it's expensive to be a bubblehead! I'm no bubblehead, but I will have a glass of champagne in honor of this special occasion.
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