jooonicorn means in slang: Jooonicorn, a kpop-tiktok account. She obsesses about joon if she didn’t already know. She claims that she doesn’t know oli london, but everyone knows she does. She also claimed she wasn’t a joon solostan, but that is not the truth. She is from Scotland. She is my best friend and first online friend. (in Slang Dictionary, added by Lorenzo Martín)