So sometimes people might accidentally put something in their butt that they weren't supposed to, like a toy or a water bottle. This is called a rectal foreign body.
Butts are meant to poop and fart, so putting things in there can be dangerous and cause damage. It's like trying to fit a square block into a round hole.
If someone does put something in their butt that they shouldn't have, they need to go to the doctor right away. The doctor can use special tools to remove the foreign body safely and without hurting them.
It's important to remember that our bodies work best when we treat them kindly and only use them for their intended purposes. So maybe stick to toys that are meant to be played with outside of your butt!