slang glossary / caillou
What does "caillou" mean?
Updated 2026-09-16 · TeenLore Daily
Meaning
Calling someone bald, referencing the hairless cartoon character. Usually playful roasting among friends.
How teens use it
bro got a fresh cut and they still calling him caillou 💀
Parent note
Harmless teasing about baldness or a bad haircut. It's Gen Z's version of older insults but less harsh. If your kid uses it, it's likely just friendly roasting.
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