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the butchest form a lesbian can come in; a lesbian who is SO dykin, words cannot describe her lesbianess; the epitome of all dykes; a bull-dyke whose style is short hair, baggy clothes, and walks with a manly strut
Girl 1: "Did you watch the Ellen Degeneres show last night?"
Girl 2: "Yeah, she is definitely a megadyke, with her spiky hair and Jeep Grand Cherokee."
by dykesonbroadway January 29, 2011
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