v. i. [ imp. & p. p. Piffled p. pr. & vb. n. Piffling ] To be sequeamish or delicate; hence, to act or talk triflingly or ineffectively; to talk nonsense or about trivial matters; to twaddle; piddle. [ Dial. or Slang ]
Syn. -- chatter, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, gibber, tattle, blabber, gabble. [ Webster 1913 Suppl. + WordNet 1.5 ]

2. To act in a trivial or ineffective way. [ WordNet 1.5 ]

n. Act of piffling; trifling talk or action; piddling; twaddle. [ Dial. or Slang ] “Futile piffle.” Kipling. [ Webster 1913 Suppl. ]