A partially bald dude who's spent way too much time in the sun without a ballcap; can often use the shine off the top of his cranium as a key light to get into his pickup.

The female equivalent of this is a Semi Chrome Domeress.
Most common complaint heard by Semi Chrome Domers: "Put a hat on that bean, will ya? It's illegal to blind-out commercial aircraft!"
by Scribester March 11, 2018
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