language game

Etymology
, coined by.

Noun

 * 1)  A set of rules governing how participants respond to utterings.
 * 2) A game that is based on players’ knowledge of a language or languages, such as fictionary, hangman. etc.
 * 3) A method of manipulating words so that the layman would find it hard to understand, such as pig Latin, gibberish, etc.

Translations

 * Danish: sprogspil
 * Finnish: kielipeli
 * German:
 * Polish: zasady rozmowy