1 a: Silly, idle talk. b: something insignificant or worthless. Nonsense.
2. One that twaddles: Twaddler.
Twaddled; twaddling. – Prate, babble.
Origin: probably alteration of twattle (1550s), idle talk.
“What ineffable twaddle!” I cried, slapping the magazine down on the table; “I never read such rubbish in my life.” – A Study in Scarlet, Arthur Conan Doyle.