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The slang term "delulu" is derived from the world "delusional". It is often used on social media to describe someone who holds unrealistic or overly idealistic beliefs or fantasies.

It’s typically used to criticize or mock individuals who have unrealistic expectations or notions, especially in the realm of relationships, celebrity fandom, or other areas where people may have unrealistic perceptions or exaggerated fantasies. It's important to keep in mind that this term is informal and may carry a negative connotation, as it implies that the person being referred to is out of touch with reality.

Where does the term Delulu originate from?

The origins of the term “delulu” can be traced back to the K-Pop fan community. The term was originally used to criticize other fans’ beliefs and theories about K-Pop celebrities. Since 2022, the term has gained popularity on social media platforms such as TikTok and is now widely used as a slang term for “delusional.”


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