خاص‌گویه

An idioglossia (from the Ancient Greek , 'own, personal, distinct' and , 'tongue') is an idiosyncratic language invented and spoken by only one or two people until it turns into a public conlang. Most often, idioglossia refers to the "private languages" of young children, especially twins, the latter being more specifically known as cryptophasia, and commonly referred to as twin talk or twin speech.