Definition of piffing in English:

piffing

noun

services' slang, historical
  • Especially in the navy: the action of firing sub-calibre projectiles.

Origin

1920s; earliest use found in The Daily Telegraph. From piff, of imitative origin, representing the sound produced by this sort of firing + -ing.

Pronunciation

piffing

/ˈpɪfɪŋ/