Brady Says Flies

Some people refer to it as flies and don't call it a fly. I've never heard this in my entire life. This is wrong. It's a singular thing. How could it be a flies? Is it like the verb action of it? Like it flies? Some people call it flies, others say your flies are open. Let us know where you stand on this because obviously, Gray and I haven't got much to talk about because we're in the same camp. There's definitely a fly is camp.