Derived from the Great SyFy show, Warehouse 13, It is used to say something is Impossible. On the show the kettle is said to grant wishes, but if a wish is impossible it produces a ferret.
It is from the first episode of season 1, Pilot.
Guy One: I've got a date with a Model
Guy Two: Dude, that's less likely than a Kettle Ferret
This is a Kettle Ferret!
February 01, 2011