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A female who shares an interest in motorcycles, cars, and/or general mechanics.
She's my radiator sister when I go riding.
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by MoreDirtyHarryThanGirl April 21, 2018
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A woman who is a little rough around the edges but like a radiator in that she radiates or emits light, heat, & sound.
I like her style, she's definitely a radiator sister .
by MoreDirtyHarryThanGirl April 21, 2018
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