olfactory "hallucinations" 

When you smell something that really isn't there.

I've had many olfactory "hallucinations" like when I smell mustard & there's none around!

olfactory "hallucinations" by Starchylde December 11, 2016

olfactory rape

Being subjected in public to any offensive odor, i.e., bo, cigarettes, cigar smoke, barn boots, farts, unwashed, unbathed bodies, etc.

At this weekend's fiber festival, I was the victim of olfactory rape by a clearly unbathed individual who was also covered with third hand smoke.

olfactory rape by Lemondrop Mangosteen September 28, 2009

olfactory assault 

When a person's mere proximity is enough to make you feel like your being repeatedly punched in the sinuses by their overbearing perfume/cologne. Olfactory assaulters have no sense of smell therefore they are immune to their own chemical warfare.

Do you like my perfume?
Yes it's intoxicating, and by intoxicating I mean, I feel like I'm two drinks in and am being waterboarded with gasoline. Please end this olfactory assault. I surrender and will tell you anything you need to know. And I'll use my underwear as the white flag.

olfactory assault by p@$$ing thr.ugh September 25, 2010

Olfactory Chapeauphilia

The fetish of sniffing hats

"Tell her to put his trilby down! Her olfactory chapeauphilia is getting out of control"

Olfactory Chapeauphilia by FluffyBunnyWunny February 21, 2012

olfactory high 

meaning you get high by only smelling the smoke of weed being passed around in a group

I swear i got an olfactory high. Went for a shit first thing, mumbled some mathematical formula that could potentially save the planet, invented a dance that can end racism for good and then headed straight home.

olfactory high by Krkič November 28, 2019

Olfactory Chapeauphilia

A particular aspect of hat fetis centred around the sniffing of hats. First recorded instance :- under the Watchtower in Northampton, ngland, January 2012.

Mary was diagnosed as having Olfactory Chapeauphilia as she sat with her nose pressed upto her doctor's hat.

Olfactory Chapeauphilia by Lord_Daemon February 22, 2012

Fecal-Particulate-Olfactory-Simulation 

Fecal Particulate Olfactory Simulation, or FPOS, is the process through which one is able to experience a fart.

I was on an escalator and was downwind of someone letting one rip.. it was the worst FPOS ever... I couldn't escape it.

Fecal-Particulate-Olfactory-Simulation by Yokes April 7, 2005