It's more of a squat, hovering over the toilet seat.
Sit in a chair, rest your elbows on your knees, and lift your ass. Now, use the elbow of your non-wiping arm to keep the support while you wipe using the other arm's hand.
No, it’s higher than a full squat, and you aren’t really leaning on anything. If you want to be super fucking pedantic you could call it a half stand I guess, but the point is your butt is off the seat.
There’s no good word for that position, and you’re doing your best to point out perceived flaws in wording rather than trying to understand.