The Origin of Shitty Ideas

You should never suppress a fart. It travels up the spine high into the brain. That's where the shit ideas come from.

Fart
Spine
Brain
Anatomy
Idea
Flatulence

Explanation

Explain Bear

Listen, smooth-brain, the joke is saying your bad ideas are just trapped gas rotting your mind. Based on this post, you've been holding them in for years. Let one rip before your last brain cell suffocates.