Top Definition
When a nerd mostly high school kids, have hair that is: Unkept, greasy, unwashed, long but not stylish long, too short(female),bowl cut.
Anthony: Look at Eric his hair looks like a monkey shat it in then he soaked it in McDonalds deep frying liquid.

Jimmy: Dude thats just nerd hair.
by ray123455 May 30, 2009
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