The spoonerism of Falling SKies is Skalling Fies... Scaling thighs.
Which to my imagination has something to do with mountaineeringlike biggirl professional womans basketball player sex.
Scaling fish is something else entirely, and if a woman has to not just shave her legs before going out on the town, but scale her "fies", then congratulations on hiding a pretty weird mutation until some dude puts a ring on her finger.
But then as far as bean stalks are concerned, I'm wonder where skaling fo and skaling fum are?