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. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
I like this interpretation
A dog is a dog’s best friend
Goofy is actually a cow
No he isn't. He's a dog. But he has the hots for a cow
I hope you're not kink shaming.
Yo momma actually a cow
Or a landwhale
Are you calling Goofy a monkey?
Goofy is evolved, enlightened dog, who walk still-animal dog.
No you're cooking