sihyoung 

A person who is mentally challenged: one who needs answers on the test to get a good grade.

What, you can't figure this out, what are you, Sihyoung?

sihyoung by IWANTTORIDEINTHEFRONTOFTHEBUS April 4, 2019

Siyoung 

An Asian with a bob cut, often has anger issues.

Siyoung has some real issues mate.

Siyoung by Ankersteam May 12, 2020

sinyoung 

noun,
a word to describe an incredibly fat person, based on the Discord Moderator 'Sinyoung'.

"Oh he's such a sinyoung"

sinyoung by vexxywexxyuwu July 25, 2022