A piece of clothing that wraps around the waist hiding the ass most popular forms of Ass Aprons are sweaters or long sleeve shirts
I was walking in the mall and this gorgeous girl was coming my way, when she walked by me I looked back to get a look at her ass but she had it covered with her ass apron
A term that a baseball umpire uses when a ball player argues the call with them in a very ignorant manner.
Player - "That was a shit call!"
Umpire- "Youre an ass apron!"