(Also a Swiss resident here) Another interesting language is (rather, was) "Matten-Englisch", something like Pig-Latin, "because people wanted to communicate i

(Also a Swiss resident here) Another interesting language is (rather, was) "Matten-Englisch", something like Pig-Latin, "because people wanted to communicate in a way the police would not understand": https://en.wikipedia.org/wiki/Mattenenglisch https://en.wikipedia.org/wiki/Mattenenglisch