Gojo: Hahahah! hello new student of mine so precious! ill explain cursed energy for YA!. Domain Expansion is a special ability It is the most powerful technique of any jujutsu user1. It allows the user to trap their opponent in their innate domain and force their rules on them2. It also exponentially increases their cursed abilities and creates a guaranteed-hit attack2. Domain Expansion is a catchphrase used in memes referencing this ability1. and moving onto cursed tools!Cursed Tools (呪じゅ具ぐ Jugu?) are weapons and support items used by jujutsu sorcerers that are purposefully imbued with a curse. Do ya get it now student!...if not ill explain cursed energy! Negative emotions such as grief and anger are the foundation of cursed energy. These emotions exist to some degree within most humans and as a result, the vast … Cursed energy is the primary power source for any sorcerer or cursed spirit. Cursed tools, cursed objects, and cursed corpses all contain cursed energ…do u get it now. Cursed Spirits (呪じゅ霊れい Jurei?), or simply Curses (呪のろい Noroi?), are a race of spiritual beings invisible to humans, incarnated from the cursed energy that leaks out of humans over time due to their negative emotions. Cursed spirits haunt and bring harm to humanity and are consequently the primary targets of jujutsu sorcerers and their exorcist work. DO YA GET IT NOw!? Jujutsu (呪じゅ術じゅつ Sorcery?), also known as Jujutsu Sorcery, is one of the defining features of the Jujutsu Kaisen series.

Jujutsu is often used as an umbrella term that includes all sorcery-related abilities that sorcerers and cursed spirits can access using cursed energy. It is also often used as a prefix for the vast majority of terms within the jujutsu society. (i.e. Jujutsu Sorcerer, Jujutsu High, etc.)

A person capable of utilizing jujutsu is colloquially referred to as a "Jujutsu Sorcerer" (呪じゅ術じゅつ師し Jujutsushi?) or simply "Sorcerer" (術じゅつ師し Jutsushi?) while those who can not use jujutsu are called "Non-Sorcerers" (非ひ術じゅつ師し Hijutsushi?).