But like say someone brings something to show you, you may reply with a cheeky “oooo that looks infected” for the lulz.

I like to say this about damaged aircraft parts for example.

Something: *is obviously broken*

Me: “That looks infected.”

Them: *crowd goes wild*

Another one I like is pointing to an obvious problem someone has already found and in a very exaggerated fashion say, (or raise your voice for EXTRA sarcasm) “There’s your problem!”

*everyone nods in agreement*