https://forum.wordreference.com/threads/lengua-de-gato.32275... (Spanish discussion)
But why does Japan write different "cat's tongue" (the body part) than "cat's tongue" ラング・ド・シャ (the pastry)?
https://ja.wikipedia.org/wiki/%E3%83%A9%E3%83%B3%E3%82%B0%E3...