A vocal expression that describes a thing, an actual object or number of objects, materials, or an item—like a tennis shoe— that stinks, smells or gives off a horrible aroma.
Also: an idea that stinks, or a preposterous notion that will never fly.
A vocalized objection to a comment or opinion, judgement, or theory, which in the face of all else is outright wrong and unacceptable.
An observation of a very hot sexual attraction...
That idea stinks to high heaven!
Shew-wee, that girl is smokin'!
Also, a variable: "pshew-wee!"