Uhh I guess it's kinda like that, minus you knowing you farted. Imagine the dog barked and ran but you genuinely had no idea why that happened. As a joke you go "dang that was like I farted so bad even the dog couldn't stand it!" But now everyone heard you say you farted, so any time a dog barks and runs away they call it "Rowbot's fart."

Dark matter may not literally be matter of any kind at all. All we know for sure is that objects with a certain amount of observable matter are, for some reason, behaving like they have much, much more. But also not with any consistency; some of them act like they have 30% more, others like they're twice their size. We just call it dark matter because "dang it's like there's a bunch of matter we can't see." But we don't really know what's causing the discrepancy.

To be fair, it's not like we're totally clueless about it, but as of yet no single hypothesis has any concrete proof.