Permanent loss of smell, loss of the ability to sniff, as in deaf.
This person usually has bad
personal hygiene, due to a lack of awareness.
A
temporary version is known as the 'sneffles'
Someone who doesn't smell the worst fart ever, esp. if they 'dealt' it.
Lola: "These roses smell
delicious."
Bruce: "
I don't care, I'm sneff, but they look pretty."
Lola: "My dog's got no nose"
Bruce: "
That's no good."
Lola: "Bruce, you sick bastard, did you make that smell?"
Bruce: "No, but I did fart awhile back, is that what you mean?"