Giving someone an enema with your shoe. "I am going to ass shoe your ass if you dont shut your ass." Meaning that someone has their foot up their ass.
An insult that is used to show disinterest, or frustration. To dismiss a wrongful statement or action.
And – most intriguingly to me – leather pumps whose heels are butt plugs. I've been I did not shove the whole shoe in my ass. That would be.