Play word 雲伯方言 雲伯方言 うんぱくほうげん dialects of Japanese spoken in Western Tottori prefecture and Eastern Shimane prefecture
Play word 沖言葉 沖言葉 おきことば euphemisms used by superstitious sailors (e.g. calling sardines "sundries", whales "Ebisu", etc.)
Play word 廓言葉 廓言葉 くるわことば sociolect or secret language used by prostitutes in red-light districts (Edo period)