macrob
A macrob is a head that got cut off and started walking around like it was going to take over the world.
"A macrob walked past me in the hallway. I ran away.", A student who got scared.
"That head just marched right past me. It’s going to take over the school.", A teacher who saw the head walking.
"I saw a macrob walking to the canteen. It’s going to eat us all.", A student who’s terrified of heads.