Here is a quote from Peter Benchley’s Jaws: “That’s a pretty shitty trick.”
I would like to know how common this expression is in English, and under what circumstances/instances is used. (That is, what exactly it means and what ironic degree do we have here).
I know that “pretty” can be used ironically, but to me as a non native, it sounds pretty odd.
So, would you please explain it in detail so that I can get a better understanding?