Slang, explained by the people who actually use it.

It is an abbreviation of "suddenly pops out."

Becoming a fan — literally "entering otaku-dom"; the moment you start stanning someone or something. Quitting is "탈덕."

"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).

Short for "scraping together even your soul" — pooling every last won, loans included, to buy a home or invest.

"Confession attack" — springing an unwanted love confession on someone who has no interest, leaving them awkward and uncomfortable; often used as a self-deprecating joke.

기쁘거나 신날 때 외치는 감탄사로 '앗싸', '오예'와 비슷하게 쓰인다. 유튜브 영상과 숏폼 챌린지를 타고 1020 세대에 널리 퍼졌다.

It is an abbreviation of "suddenly pops out."

Short for "sweet-potato frustrating person" — someone (or something) so exasperating it feels like sweet potato stuck in your throat; the opposite of "cider" (사이다).