Slang, explained by the people who actually use it.

It is an abbreviation of "suddenly pops out."

Short for "save it even if you're not a fan" — a photo or clip of a celebrity so good that anyone would save it.

"Mom's friend's son" — used for someone impossibly accomplished compared to you. The female form is "eomchindal" (mom's friend's daughter); there's also "bu-chinnam" (wife's friend's husband).

Adds "Ha" (for SK hynix) to the classic list of elite majors — medicine, dentistry, Korean medicine, pharmacy, vet school — joking that chip jobs now rank with becoming a doctor.

Samsung Electronics + SK hynix lumped together — the two chip giants investors talk about as a single bet on Korea's AI-driven market.

"Age" + "mileage" — expecting special treatment just because you're older, as if age were reward points.

Your second favorite — the member or character you like next after your 최애 (bias).

It is an abbreviation of "suddenly pops out."