piffle vs twaddle

piffle and twaddle both are nouns.

Word	Noun	Adjective	Verb	Adverb
piffle	Yes	No	Yes	No
twaddle	Yes	No	Yes	No

As verbs, piffle and twaddle are synonyms defined as:

piffle and twaddle: speak (about unimportant matters) rapidly and incessantly

Other synonyms of piffle include blab, blabber, chatter, clack, gabble, gibber, maunder, palaver, prate, prattle, tattle, tittle-tattle.

piffle (noun)	twaddle (noun)
trivial nonsense	pretentious or silly talk or writing

piffle (verb)	twaddle (verb)
act in a trivial or ineffective way	speak (about unimportant matters) rapidly and incessantly
speak (about unimportant matters) rapidly and incessantly