What about 대박?
대박 technically means "jackpot!" or "great success" so you use to describe someTHING that is really awesome (but not really a person)
You CAN say someone's feature is 대박...Like "Hakyeon's legs are 대박" hahaha but if I'm talking about just Hakyeon I'd use 짱 :D
BAP is here to help you pronounce it!
Start listening at 1:16