Top Definition
A homosexual women who rides a motorcycle; a combination of the words dyke and biker. Typically known as members of the San Francisco group Dykes on Bikes.
"Did you see Emily with her new Harley?"
"Yeah! She's such a hot diker."
by B Moneee May 12, 2008
A permiscusious homosexual woman or teen who is mamed a bitch. Also Called Hoochie Diker.
John was walking down the road when a Woman in short shorts and a tube top walking down the road.
"She is such a Diker!" he mumbled.
by Chong Fawyuistawt August 13, 2003

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