It's a pet hate of mine, when people use little tag phrases. They're annoying. Mainly "pack it in" and "oh pipe down" or "oh give over" and "oh grow up". I don't know why but they just annoy me when people use them, as if they are better than me because they can use phrases like that

It also annoys me when people online use "ffs" during a disagreement/argument.
Anyone have any other phrases that annoy them?