This is the official translation of internet chatting in french made by the Office de la Langue Française, an organization of the Governement of Québec that wants to preserve the french language.

The word is a derived of the noun Clavier (Keyboard) and of the verb Bavarder (To Chat). Mix them together and you'll get a funny word that gives another reason to laugh at the french (sadly): Clavarder (think of it in english, it would be To Keybchat).