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

• oscillogram
• oscillograph
• oscilloscope
• oscine
• oscine bird
• Oscines
• oscitance
• oscitancy
• oscitant
• oscitation
• Osco-Umbrian
• oscular
• osculate
• osculating circle
• osculation
• osculator
• osculatory
• oscule
• osculum
• OSHA
• osier
• Osip Emilevich Mandelstam
• Osip Mandelstam
• Osiris
• Oslo