Top Definition
The odd phenomenon of your hair looking its very best just before you go to bed. Cousin to "oh no haircut hair," the even odder phenomenon of your hair looking absolutely perfect on the very morning of a haircut appointment.
He stumbled into the bathroom at midnight only to discover, as usual, that he had Good Night Hair.
by Xmarcus April 30, 2009
5 Words related to Good night hair

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