That's so gay

How many of us have said the phrase "That's so gay" or "That's gay", or something along those lines? Well, a student was complaining about an assignment I gave today and another one started the discussion, why can't we say "that's so Straight" or "that's so bi" lol

Gave me a bit of a chuckle and I figured I'd share. Hope you're all having a good day!