When a guys hairline is just above his eyebrows. Also called a onehead or a two-year, depending on how close the hairline comes to touching the eyebrows. Usually a guy with a chimp hairline has round or circular ears that stick out straight from the side of his head.
That Justin kid has a chimpanzee hairline. I don't even think he has half a forehead.
by Solid Mantis June 23, 2018
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