Well, urban dictionary or not, that’s plain silly. If you know ANY teenagers (and I teach at a university) that is EXACTLY what they mean-—”that’s so homosexual.”
I know lots of teens and almost teens (tweens...lol what a lame [ghey lol] designation) and they use it as meaning dumb, lame, stupid etc.
But then choosing the homosexual lifestyle is dumb, lame, stupid etc.
So maybe it means all of the above, homo and urban dictionary.
There was a court case I followed in a town near me, where a girl student used the term “gay”, in the use of the definition ghey.
She made it clear she didn't use it to mean homosexual.
Look outside the university and you may see what I have observed.
Even if they do mean “that’s so homosexual” are you sure they mean it in a sexual way?
Oh and I agree...this whole thingie is so silly.
In fact, it's GHEY!
LOL
Oh, and the court case?
PC rules ruled, she was castigated for using the term "gay."