Lobotomy Kaisen is the phenomena that occurs whenever the Jujutsu Kaisen manga goes on break, it usually lasts the same amount of time the break lasts. When the manga goes on break all Jujutsu Kaisen manga readers turn into lobotomized fiends that will post and repost the same 5 memes with either no modifications or very slight modifications done to them, resulting in a cacophony of mental illness.
Guy: Yo man, how are you?
Lobotomized Jujutsu Kaisen fan: Are you stand proud because nah I'd win the one who left it bet on Hakari the strongest.
Guy: Oh lobotomy kaisen is back.
Lobotomized Jujutsu Kaisen fan: You are strong.
The definition of complete menace. Strong enough to stop an earthquake by punching the ground once, with enough anger and strong presence to shake an entire building and so much testosterone that anyone around him, regardless of gender, is now a woman.
"You heard about the street fight last night? I heard some guy got Yujiro Hanma'd and got beaten in one hit"