English

Noun

niff ‎(plural niffs)

1. (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

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

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