Fromr-slur +-ed. Came into common use onReddit beginning around 2019 in response to increasing censorship of the wordsretard andretarded.
r-slurred (comparativemorer-slurred,superlativemostr-slurred)
- (Internetslang, euphemistic, offensive)Retarded; extremelystupid orderanged.
Phillip called my friend "r-slurred" yesterday.
2020 December 29, @sonyasupposedly,Twitter[1]:whether the conclusion is prima facier-slurred does indeed have an effect on how people respond to it, let this be a lesson to you
2022 March 27, @AugustaKlumpke,Twitter[2]:That's probably still semantically wrong but at least it's not an entirelyr-slurred argument.
2022 April 17, @poetrygrifter,Twitter[3]:you know that children's book with ther-slurred little bird that looks for its mother and asks like, a pig a cow a construction crane etc. if it's its mother?