I haven't heard this in English now that you say it, but in Spanish it's also a whole category of jokes, just instead of "Cumaeans" it's "Lepe" (a small town).
"Lepe is known for its strawberries, and for Spanish jokes referring to its inhabitants as stupid."
I haven't heard this in English now that you say it, but in Spanish it's also a whole category of jokes, just instead of "Cumaeans" it's "Lepe" (a small town).
"Lepe is known for its strawberries, and for Spanish jokes referring to its inhabitants as stupid."
https://en.wikipedia.org/wiki/Lepe