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1.
The absence of the ability to use the sense of scent.
"What is that smell? Please tell me I'm not going noseblind and that wasn't here all along!"
by cjds August 13, 2011
 
2.
An ailment of the schnoz that can lead to severe nose-not-worky-ness. The cause of noseblindness can be anything from a point-blank skunkblast to a particularly juicy fart.
Dude, that chick's cooch is so nasty I wish I was noseblind so I wouldn't have to smell it!
by Sgt. Waffles September 28, 2010