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To 'smellucinate' - to imagine a smell that isn't actually there, as if to 'hallucinate'.
To experience a 'smellucination'.
"I thought I could smell weed, but it seems I was just smellucinating".
"I had a smellucination".
by Glennyboy August 02, 2007
When you smell something that is not there.
I got into my car one night and smelled macaroni and cheese, but I've never had it in my car. It must have been a smellucination.
by Amber Dragonblood February 24, 2012