An adjective to describe something that resembles South Korean boy group and rapper Jung Hoseok, AKA j-hope. It is mostly used to describe outfits or garments that remind you of Hoseok's colorful and sometimes outlandish fashion.
"Dude, I wore the hoseokiest outfit the other day. Balenciaga sneakers , shredded jeans shorts, a Supreme shoulder bag, a bunch of colorful accessories, and the cutest beanie you've ever seen."
"Yeah, man. I actually saw you pass by the train station! I couldn't help but smile at your outfit. It was just so..."
"Hoseoky?"
"Yeah!"