my science teacher dead ass dropped the r slur

what's the r slur ?

I think that's the n word?

what kind of teacher is that

Oh okay correction, I just searched it up. It said r slur as in retard. Help sorry I don't know shit

why is it a slur

Well to my understanding according to what I read, it originated as a clinical term for people who have intellectual disability. But currently rn, people use the word as a hate speech because it dehumanised people who have intellectual disability. It's been used casually for insults and demeaning individuals.

thanks for giving me knowledge (づ￣ ³￣)づ