Synonyms to secret language

argot, Aesopian language, Babel, Greek, babble, cant, cipher, code, cryptogram, double Dutch, garble, gibberish, gift of tongues, glossolalia, gobbledygook, jargon, jumble, lingo, mumbo jumbo, noise, patois, patter, phraseology, scatology, scramble, slang, taboo language, vernacular, vocabulary, vulgar language, absurdity, amphigory, babblement, baffle, balderdash, bavardage, be Greek to, be beyond one, be indiscreet, be insane, be too deep, be unguarded, beat one, betray, betray a confidence, bibble-babble, blab, blabber, blah-blah, blather, blether, blethers, blurt, blurt out, bombast, bubble, bull, bullshit, burble, cackle, caquet, caqueterie, chat, chatter, chattering, chitchat, chitter-chatter, clack, claptrap, clatter, disclose, dither, divulge, dote, double-talk, drivel, drool, escape one, fiddle-faddle, fiddledeedee, flummery, folderol, fudge, fustian, gab, gabble, galimatias, gammon, gas, gibber, gibble-gabble, give away, go on, gossip,