sniffaholic 

A person who is enslaved by their own highly developed sense of smell, often to their own detriment.

He was entirely compulsive about it, a complete and total sniffaholic, a person unable to not smell every single item and surface he came across!

sniffaholic by Dr Bunnygirl November 4, 2019

Snuffaholic 

Somebody who is addicted to (snuffing), or kicking peoples asses.

Yo, Jeff is such a Snuffaholic, he snuffed 10 people yesterday.

Snuffaholic by THE actual burger king November 10, 2010

sniffalicious 

Something that smells like heaven to a dog. You have to drag them away from it while walking.

Come on dog, let's go. I don't see what you think is so sniffalicious about that piece of poop! P U

sniffalicious by Coconut Head in Space May 24, 2005