Niff

Full definition of niff

Noun

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.