Giant angry zombies are sometimes produced in high flux areas, with the message:
A nearby node spews forth something foul
They will start appearing if a player has thrown Rotten Flesh, Bones, or Brains into the Crucible while making Magic Tallow. It seems to only spawn during night or during Thunderstorms. They deal high damage and have almost double the hit points in hard mode than Angry Zombie. They appear identical to Angry Zombies except that they are 3.5 blocks tall and suffocate under a three block high ceiling as they seem to have the pathing of regular zombies and so follow the player into areas too short for them.
They drop regular zombie brains and normal experience.