piff adjective 1exclamation 1noun 1verb 1forms 5 adjective1 •(UK, slang) good or attractive.You look quite piff today. exclamation1 •An exclamation of annoyance or contempt; pish; pshaw. noun1 •(slang) Piffle; nonsense; rubbish."You're talking piff." — 1924 verb1 •(Australia) To throw something vigorously. formspiffed · piffing · piffs · more piff · most piff