What Does ‘Delulu’ Mean?
Delulu is a playful short form of "delusional", used for someone with big, unrealistic hopes, often about a crush, a dream or a result, and sometimes embraced as a positive mindset.
Moods & reactions adjective / noun
Examples of ‘Delulu’ in a sentence
- “I am delulu enough to think the band will reply to my message.”
- “Her delulu confidence got her through the audition.”
Where does ‘Delulu’ come from?
Clipped from "delusional". It grew out of K-pop fan communities before going mainstream; Dictionary.com has an entry for it.
How to use it, and when not to
Use it about your own optimistic daydreams. Do not use it to mock someone's real hopes.
For parents and teachers
Fine around parents and teachers. Clean and usually kind. The word "delusional" has a medical sense, but "delulu" is playful.
Related slang
Frequently asked questions
What does Delulu mean?
Delulu is a playful short form of "delusional", used for someone with big, unrealistic hopes, often about a crush, a dream or a result, and sometimes embraced as a positive mindset.
Where does Delulu come from?
Clipped from "delusional". It grew out of K-pop fan communities before going mainstream; Dictionary.com has an entry for it.
Is Delulu OK to say around parents or teachers?
Fine around parents and teachers. Clean and usually kind. The word "delusional" has a medical sense, but "delulu" is playful.
How do you use Delulu in a sentence?
I am delulu enough to think the band will reply to my message. Her delulu confidence got her through the audition.
More moods & reactions slang
Bed rot, Brat, Bruh, Cooked, Crashout, Demure. Or browse the full A–Z / try the Slang Translator.
Sources
Definition written by VibeDex. Slang changes quickly, so this is a snapshot. Last reviewed 2026-10-23.