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.
A Foisty Fish is a seedy sex trap, when someone lays waiting naked for you to return, but they aren't waiting in a sexy way, quite the opposite.
Slithering and sliming around the bed, in their own filth expecting sex - but the sight of it is an instant turn off.