Define Sick As Hell Meaning

"Damn bro that truck is sick as hell".....da

I am sick as hell, i need to go to the doctor

Sarah: Did you have a condom?
Sam: Fuck no, why?
Sarah: I'm not on birth control...
Sam: Oh yeah, I also didn't pull out
Sarah: wtf -_-
Sam: But guess what?
Sarah: What...?
Sam: YOU SICK AS HELL!!!!!