A Korean given name. Usually given to the most masculine, manly men. JoonHos are typically ladykillers and have awesome hair. They are known to carry 100 dollar bills around in their wallets and dress incredibly suavely. They also tend to be adorably naive and have a strong sense of independence.
Person 1: Who's that tall Korean chap over there making all the ladies swoon with his sultry voice?
Person 2: Oh, that's JoonHo. Be careful or you'll fall in love with him.