Something that has the dry, dusty, not quite right aroma of a room that hasn't been entered for a long time.
Little could she know that the foisty aroma was a result of something far darker than than the previous owner's fondness for polyester chenille as a home furnishing fabric.
by Hel-lou August 16, 2010
a kind of moth-ball aroma, or something gone-off at the back of the fridge.
That milk's gone a bit foisty
by Kittymckitten October 17, 2004

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