high-tard
A retarded person who has enough mental faculties to hold a job (Like a grocery store bagger or McDonalds), dress themselves, doesn't require a diaper and perhaps even marry - but you don't want that to happen. But they can't drive or be in the same math class as you.
That high-tard they hired at the grocery store did a fine job of sacking my groceries. I was worried she would get lost in the parking lot.
high-tarded
When you've gone and smoked yourself retarded, or you are retarded and stoned. Either way, you are high-tarded.
At the grocery store...
Laura: I think our sacker was high!
JP: Uh, no, I think he was just "slow"
Laura: Dude, I guess that makes him high-tarded.
Laura: I think our sacker was high!
JP: Uh, no, I think he was just "slow"
Laura: Dude, I guess that makes him high-tarded.