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An attractive, boyish-looking, young gay man (twink) who is a die-hard fan of Madonna. The stereotypical rebelheart is feminine ( fem ) and very independent.

Origin:
The word started to be used after Rebel Heart, the thirteenth studio album by Madonna, was released on March 6, 2015.
That boi John is such a rebelheart!
via giphy
by YatoGod July 30, 2017
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