Wipidextrous

Of, or pertaining to, the ability to use either hand to wipe one’s own ass. In some cultures, proper poop etiquite requires only using the left hand to handle urine or fecal duties of disposal and cleansing.

Not related to switch hitter.

Raj: What hand do you use to wipe your ass?
Stan: I use the hand closer to the toilet paper. I’m wipidextrous.

Being wipidextrous means I can wipe my ass with either hand.