The act of being so clueless after smoking Hash or Hashish that you are either walking in a daze, usually looking at the ground or sky. Or Rubbing your legs/arms for no reason, moving in a seemingly jerky motions, the possibility of a laugh attack while in a "Hash Zombie" state are high, as well of deep conversations that will unlock the secrets of your mind.
"Dude, we were Hash Zombies last night"
"Yeah i know, we talked about the universe for at least an hour. I understood is all so well, also my arms are sore from rubbing my legs for so long."