noun
twin talk; cryptophasia; idioglossia
Linguistics term for the private language sometimes developed between twins. The English terms 'twin talk', 'cryptophasia', and 'idioglossia' are all used, with 'cryptophasia' being the most technical.
双子語は、双子の間だけで通じる独自の言語体系を指す。
Twin talk refers to a unique language system understood only between twins.
言語学の授業で双子語の事例を学んだ。
We studied cases of cryptophasia in linguistics class.