GRD ASKY is not English, it’s an acronym of 그래도 안생겨요.
It means “You can never make any girl(or boy) friend whatever you try to do for making that.”
It’s expression of self-deprecation. If you say this word to another, it means “Give up buddy, you can’t have a boy(or girl) friend”.
A: 여자 친구 만들려면 어떻게 해야 되?
B: 옷좀 잘 입어봐
A: 다 소용없어. GRD ASKY.