1880, present-participle adjective (from the first typically with idiot) from blither (v.) "to talk nonsense." From 1872 as a verbal noun.
1942, American English slang, the first element probably a nonsense reduplication of suit (compare reet pleat, drape shape from the same jargon).
"a lie," especially a little one, "a white lie," 1610s, of uncertain origin, perhaps from fibble-fable "nonsense" (1580s), a reduplication of fable (n.).
"nonsense, rubbish," (1791), earlier and more usually as a contemptuous interjection, "lies! nonsense!" Probably a natural extension from fudge (v.) "put together clumsily or dishonestly," q.v. But Farmer suggests provincial French fuche, feuche, "an exclamation of contempt from Low German futsch = begone."
also falderal, falderall, folderol, etc., 18c. nonsense words from refrains of songs; meaning "gewgaw, trifle" is attested from 1820.
"buffoon, fool, stupid person," 1550s, from Old French mome "a mask. Related" Momish. The adjective introduced by "Lewis Carroll" is an unrelated nonsense word.
1944, from bebop, rebop, bop, nonsense words in jazz lyrics, attested from at least 1928. The style is associated with Charlie Parker and Dizzy Gillespie.