subject matter, content, message, substance - what a communication that is about something is about

absurdity, absurdness, ridiculousness - a message whose content is at variance with reason

amphigory, nonsense verse - nonsensical writing (usually verse)

balderdash, fiddle-faddle, piffle - trivial nonsense

buzzword, cant - stock phrases that have become nonsense through endless repetition

cobblers - nonsense; "I think that is a load of cobblers"

crock - nonsense; foolish talk; "that's a crock"

fa la, fal la - meaningless syllables in the refrain of a part-song

gibber, gibberish - unintelligible talking

unintelligibility, incoherence, incoherency - nonsense that is simply incoherent and unintelligible

jabberwocky - nonsensical language (according to Lewis Carroll)

mummery, flummery - meaningless ceremonies and flattery

empty talk, empty words, hot air, palaver, rhetoric - loud and confused and empty talk; "mere rhetoric"

rigamarole, rigmarole - a set of confused and meaningless statements

schmegegge, shmegegge - (Yiddish) baloney; hot air; nonsense

hooey, poppycock, stuff and nonsense, stuff - senseless talk; "don't give me that stuff"

baloney, bilgewater, boloney, bosh, drool, humbug, tommyrot, tosh, twaddle, taradiddle, tarradiddle - pretentious or silly talk or writing