Retard

Retard is a medical slur against people with disabilities and mental disabilities. Only people that have disabilities can say this. If you tell a disabled person they cannot say it, you are abliest.

Kaylynn: "you are retarded"
Danne: "dont say that, that's a slur"
Kaylynn: "im joking"
Danne: "you still aren't disabled. Don't say it you absolute asshole."