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".