Insertical

An object that you use that doesn’t insert your body or item but still does the job

I went to go toilet at a friends house. I needed to fart but knew I couldn’t as they was in the next room.
I used a piece of tissue to cover the bumwhole and stop the fart from coming out whilst peeing.
In this case the tissue was the insertical object.

Working like a butt plug but with out the inserting.