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1. Trivial nonsense
   - balderdash, fiddle-faddle

1. Speak (about unimportant matters) rapidly and incessantly
   - chatter, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, blab, gibber, tattle, blabber, gabble, witter [Brit], rabbit [Brit], yabber [Brit]
    
2. Act in a trivial or ineffective way

Derived forms: piffles, piffling, piffled

Type of: act, behave, bunk, do, hokum, meaninglessness, mouth, nonsense, nonsensicality, speak, talk, utter, verbalise [Brit], verbalize