A group of Fags. Usually partying or clubbing together or doing something that is quite faggy. And usually denotes a motley crew of Fags, not just cloned Fags, hence referring back to the tv show F Troop where there were characters / soldiers of different looks, heights, ages, etc.
Check out that F Troop over there! Did you ever see such an epic collection of Fags in one place?
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi