It's a reasonable common idiom with tongue firmly planted in cheek.

(Btw, you've been shadowbanned a while ago. I'm only mentioning this, because your recent comments seem sane as far as I can tell.)

You should email dang. I didn't bother to review your comment history, but if your new comments are avoiding whatever got you shadow banned, he'll probably give you another chance. Skipping that step, there's a very good chance your new account would get auto-shadowbanned as well.

TIL.

I've only ever heard it on an episode of Monty Python. Wonder if it's just a UK thing.

I've heard it in other context, but those people might have picked it up (indirectly) from Monty Python.