The worse it smells the righter it is because science

Because someone has to. For the word "instinct," from Latin instinctus "instigation, impulse, inspiration," noun use of past participle of instinguere.

• in - "into, in, on, upon"
• stinguere - "prick, goad," from PIE *steig- "to prick, stick, pierce"

So, in the end, the "stinct" has more to do with the word stick than it does stink.

Here's a reference link. https://www.etymonline.com/word/instinct

edit: I know this is a shit post. I just think etymology is neat.

Except after we fart the instinks officially become outstinks. And I’m not following my outstinks.

Wut

Not bacteria, just bowel gases.

--Edit--

Although the gases are produced by bacteria, so there is that.