colpo sul naso

listen to the pronunciation of colpo sul naso
Italian - English
smeller
something that has an unpleasent odor
Someone or something that smells, that detects scent

I'm much more of a smeller than a taster and I think that comes from being a chef.

the nose
One who smells, or perceives by the sense of smell; one who gives out smell
{i} one who smells, one who tests by smelling; nose (Slang)