Meaning of "What's up?"

U-Sim-Son-Kka

What's up?우심손까#MBTI#줄임말#관계/연애#밈/유행어2010s Meme

An abbreviation for “We’re bored—wanna hold hands?”, it’s a playful way to suggest holding hands and flirt lightly when you’re in the early stages of a relationship.

"He asked, “What are you up to today?” and then suddenly said, “High five,” so I smiled and held out my hand."