not dead yet 

To be still alive, most often used when someone is ment to be dead, but still lives on. also used with the case of someone whom has had someone try to kill them, and yet, still lives. Could be used with the instance of if he is going to die, and you are just waiting for him to die.

someone killing someone

"You shot him right?"
"yea"
"and he is not dead yet?"
"right"

waiting for you to die

"You shot him in the chest?"
"yea"
"its been 6 hours, and he is STILL NOT DEAD YET??????"

not dead yet by The Great Dane May 20, 2004