Gen Alpha slang · Adjective
delulu
Meaning
Delulu is Gen Alpha slang for deluded, usually affectionately, used mainly by ages 11–25.
Where it came from
From K-pop fandom, short for delusional, mainstreamed by TikTok around 2023.
Tone check
Affectionate. Often self-applied.
Used in a sentence
"I'm being delulu about this test."
Peak: 2023–2025
Age range: 11–25
Safe for adults to use
Related words
Keep decoding
goat
the greatest of all time
glow up
a dramatic improvement in appearance over time
sigma
independent, confident and unbothered by social hierarchy
bussin
excellent, usually about food
storm
a wave of group-chat messages about one person
washed up
thoroughly past your best
yapping
talking far too much
throwing
losing on purpose, or playing badly enough to lose