In English, the adjective "crooked" generally means "bent, twisted, out-of-true." In senses both literal and figurative, it contrasts with "straight," and this contrast is true in Indo-European languages generally (West 413-4).

But Old Craft sees it differently.

In the Indo-European world at large, the gods are the *déiwôs, the "celestials." But the witch's gods are first and foremost the earthly gods, the powers of Here. Even in pagan days, we were (of necessity) Other; every culture needs its other. We were (and are) the institutionalized Other, necessary source of disquiet and critique from Within. Yes: even then, we straddled the Hedge.

The elder witcheries are sometimes known as the "Crooked Way" or the "Crooked Path": witchery as the Way of Indirection. Results indirectly achieved are nonetheless results. Witches rarely go in for frontal assault. We're far more likely to go around. Or under. Or over.

Small wonder, when He Himself is known (among other things) as the Crooked Serpent, Who is our teacher in the art of indirection, the Great Horned Snake whose Serpent Path we tread.

 A while back, I found myself humming an old Mother Goose rhyme. I hadn't thought of it in years.

  There was a crooked man,

and he went a crooked mile;

he found a crooked sixpence

upon a crooked stile.

He bought a crooked cat

that caught a crooked mouse,

and they all lived together

in a little crooked house.

The stile—stairs that lead up and over a fence or hedge—is a recurrent image in Old Craft symbolism, as are all times and places of Betwixt-and-Between.

In the world, many streets are called Straight.

But ours is the Winding Way.

M. L. West, Indo-European Poetry and Myth (2007). Oxford.