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an individual male that upon first glance is not definable as either gay or straight.
rachel "that guy is hot- do you think he's straight?"

nicole"nah, he's gay...well he COULD be straight. he's on the cusp. he's a cusper!"
by skittles from the pen April 29, 2011
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Noun. (plural cuspers) A person considered to have been born on a cusp between significant generations. (astrology) A person born on a day at a junction of star signs.
by NMBR3 November 20, 2018
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