Why do I need to know papoter? It's a slang term and one that is used in casual conversation, especially if you're chewing the fat over drinks. It means to chatter, to chinwag, to chitchat, to prattle, to natter - a casual term for talking that also has the sense that the subject of the conversation is not particularly serious. Or if you're a mean boss you could say Je ne te paye pas pour papoter - I don't pay you to natter. So if you call someone une fille bavarde - that means a girl who pretty much never stops talking.
Source: The Local November 14, 2019 10:45 UTC