Google’s Language Tools page provides an option to customize the language used for your Google Interface. In addition to, of course, English, and standard languages such as Dutch, German, etc., older languages such as Latin (“Favente Fortuna!”), and utopian/invented languages such as Esperanto and Klingon, you can select other, more whimsical ones, like Pig Latin (“I’may Eelingfay Uckylay!”), Elmer Fudd (“I’m Feewing Wucky”).
N.b.: not for the humor-challenged (your know who you are).
