-2
We should have a better definition for the word hole
(sh.itjust.works)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
Personally, I think "butthole" sounds more pleasant than "butt tunnel."
That's because you've only named one end of the tunnel. It's the Mouth-Butt Tunnel.
Now it sounds as if someone is charging tolls.