Spasell is a slang of Insubric language, spoken until the 19th century by inhabitants of Vallassina, when they used to go out from the valley for business and they didn't want to be understood by the people. It is characterized by code-words conventionally defined basing on characteristics of the thing or on onomatopeias; other words have an unknown origin. It has been noted by Carlo Mazza, vicar of Asso, in his book Memorie storiche della Vallassina of 1796. He informs us that several slangs have been created in the time, because in the time the words were introduced in the current language, reducing the differences between "official" language and "secret" language. After a list of terms, the vicar proposes, as example, the translation of Pater Noster in this language, evidencing that it'