Short and uneven fingernails that typically go unpainted, although chipped and/or sloppy polish is not uncommon. Associated with but not exclusive to lesbians.
Straight male: Shit, I didn't notice Amy's dyke nails. No wonder she rejected me. T_T

Lesbian: Omg, Amy has dyke nails, maybe she'll go out with me! ^_^

Amy's straight friend: Amy, we need to do something about those dyke nails. They're going to give people the wrong impression...-_-
by dyke nails August 22, 2007
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