A condition in which you seem to trigger everyone's gay detectors, but you are in fact straight. This leads to you being asked if you are gay constantly and often being an icon among the LGBT despite being entirely straight.
"I think I was supposed to be gay. I think, like, in Heaven they built, like, three quarters of a gay person and then they forgot to flip the final switch, and they just sent me out and it was like, 'You marked that one gay, right?'
And it was like, 'Oh no! Was I supposed to?'" - John Mulaney creating John Mulaney syndrome
by simplyhopeless October 10, 2020
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Acts kinda gay but is straight
Tommy: hey bro you act kinda gay sometimes.

Jimmy: Well I actually have John mulaney syndrome!
by Jackson prock September 26, 2020
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