(nonstandard) Any such system that adds olfaction to cinematography, often portrayed as futuristic or far-fetched.

(idiomatic, Australia, New Zealand) A very small amount, or the absolute minimum (usually of money).

present participle of smell like a rose

(idiomatic, colloquial, simile) To be regarded as appealing, virtuous, or respectable; to be untainted or unharmed.

plural of smell-o-rama

plural of smell-o-meter

(informal) A characteristic odor caused by the combination of chemicals and materials in a new automobile. / (figuratively) A perception of freshness or novelty.

Alternative form of smell blood

Alternative form of stop and smell the roses

(humorous, informal) See you later; goodbye.