1. to smell bad; to stink
Usage: British informal; third person singular present tense of 'niff'

1. a bad smell; a stink
Usage: British informal; plural of 'niff'

Examples

• The old cheese niffs terribly.
• That rubbish bin niffs in the summer heat.
• There are some awful niffs coming from the kitchen.
• His gym clothes niff after practice.
• The niffs from the factory were unbearable.