A person who claims to have a very wide
intellectual span, academically, socially or emotionally, but does not even
understand the basic functions of human nature and math. A doyoon is likely to show off or brag about things he/she does not have. Is usually also a kpop fan.
"There was this dumb Doyoon in my class, he kept saying he got better grades and was smarter, but
in reality his IQ was like 30 hah."
"dang, that sounds like an
annoying guy to
deal with".