English edit

Pronunciation edit

Noun edit

niff (plural niffs)

  1. (UK, Ireland, Australia, New Zealand, informal) A bad smell.
    Whew, there's a bit of a niff in here. Is that your socks?
    • 2014, Nick Arnold, Horrible Science: Body Owner's Handbook, page 159:
      Police helicopters blared loudspeaker warnings about the smelly man. Soon afterwards, a nosy motel receptionist noticed a nasty niff from a new guest.

Verb edit

niff (third-person singular simple present niffs, present participle niffing, simple past and past participle niffed)

  1. (informal) To smell bad; to stink.

Derived terms edit

See also edit