P.S. I was once a member of a gym, and I know I didn't snigger and tell "dyke" jokes about muscular women, but then, I don't recall seeing any particularly muscular women at that gym. And I find gyms a waste of time for me, anyway. All that time walking there, changing, and afterwards, changing again. It killed my interest in working out, which wasn't huge to begin with. (The membership was my ex's to begin with, so she could get a lower rate.) These days, I work out at home.
However, if I saw a woman with really huge muscles, like the cover girls on those weightlifting mags, I would snigger behind her back, but it wouldn't be about who she was sleeping with. It would be the "s" word, just as with guys who are too big to be true.