the word "Luti" would then mean :like Lut, or follower of Lut; which is dis-respect to the noble prophet. "lawatat" is the urdu word for sodomy. unfortunately.
I heard from a scholar that he doesn't like the use of the word 'luti' for homosexuals as it's not proper adab towards sayyiduna lut alayhis salam. it was his nation that practiced this so its nisbah shouldn't be towards the nabi. thoughts?