piffle vs blabber

piffle and blabber both are nouns.

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

As verbs, piffle and blabber are synonyms defined as:

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

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

piffle (noun)	blabber (noun)
trivial nonsense	one who reveals confidential information to the police or other authority

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