Coldest take I've ever seen was the thing about the smooth brain joke being the new r slur.
Like, I get why it's mean to joke about because that is a genuine disability, but I am genuinely hurt by the fact that people are comparing it to a slur that's been used for decades to dehumanize disabled people. Like, that's kinda fucked up fr.
Unlike the r slur, smooth brain doesn't only refer to somebody who is disabled. It's more known as a term used to describe animals who usually have smoother brains and are therefore less intelligent than other animals who usually have wrinkled brains..
Nobody jokes about it because it's a disability. They're not saying you have disabled brain, they're literally just saying you have Koala brain.
Some may argue that the r slur is used because people think it means stupid.. No they don't think that, they know what it means, they just use it instead of "stupid." That's why it's ableist, that's why it's a slur. That's why it's not the same as a joke about fucking animal brains.
Is it a mean joke? Yes, yes it is. Is it the same as the r slur? Absolutely fucking not.