1) Balderdash 2) Baloney, to a brit 3) Bunk 4) Fiddle-faddle 5) Hokum 6) Meaninglessness 7) Nonsense 8) Nonsensicality 9) Senseless talk 10) Slang for nonsense, drivel 11) Speak rapidly and incessantly 12) To be squeamish or delicate 13) To waste, to fritter away 14) Trivial nonsense 15) Trivial talk 1) Balderdash 2) Blither 3) Bosh 4) Fluff 
• (v. i.) To be sequeamish or delicate; hence, to act or talk triflingly or ineffectively; to twaddle; piddle. • (n.) Act of piffling; trifling talk or action; piddling; twaddle.
Pif'fle intransitive verb [ imperfect & past participle Piffled ; present participle & verbal noun Piffling .] To be sequeamish or delicate; hence, to act or talk triflingly or ineffectively; to twaddle; piddle. [ Dial. or Slang] Pif'fle noun Act of piffling; trifling talk or action; piddling; twaddle. [ Dial. or Slang] 'Futile piffle .' Kipling . 
Nonsense.
Piffle is slang for nonsense, drivel.
[v] - act in a trivial or ineffective way