I'd be very careful in seeking factual answers from ChatGPT. ChatGPT can't provide refefences and citations, so it's very hard to back up its claims. It might make an answer that sounds convincing, there's no guarantee for it to be factual. It's a language model, not an encyclopedia.

>"When I used the term, I actually thought it was in reference to leftover seconds on a plate, in respect of food, like when someone eats a meal on a plate normally it can be categorised as sloppy by the time you've finished with it," he said on radio this morning.

You mean to tell me it's not that? I legit thought the sexual meaning was just an apllication of the idiom to sex, not the primary meaning. TIL