True or false: Old fashioned insults (part 2)

It's National Insult Day in a few days' time*, so that means it's time for another insult themed true or false quiz! Take a look at the following insults, and see if you can guess whether they're genuine old fashioned insults from the olden days, or whether I've just made them up.

* October 28th, to be precise.

In the olden days, if someone was talking
flibbertigibbet, they were talking nonsense.
But is that true, or is it flibbertigibbet?

1) Flibbertigibbet

As I've mentioned in one of my previous posts, if someone is talking nonsense, then in China you might exclaim, "Dog fart!" to indicate that they're talking rubbish.

In the olden days, they didn't have any insults quite as amusing as "Dog fart!" but they did have the rather cool expression of 'flibbertygibbet'. To elaborate, in the olden days if you wanted to accuse someone of talking nonsense, you might say, "That's flibbertygibbet!"

Real insult or fake insult?