Top Definition
lesbian. The expression probably comes from the typical hairstyle of a rug muncher, which is too short to put up in a bun, but for some reason, she tries anyway.
My friend: "She's pretty in a boyish sort of way."
Me: "Forget it. She's a struggle-bun."
by Richard Hertz August 04, 2006
5 Words related to struggle-bun

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