Heart-attack cute — the lurch your chest does.
Used when something is so cute or so attractive that your heart thumps — an idol’s smile, a puppy, a line in a drama. Lives in captions, comments and fan talk, and works as a verb with 하다.
From 심장 (heart) + 쿵 (thud). The word is literally the sound effect.
Young, online and enthusiastic. Not a word for a work email.
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