1. What does it mean?
금사식 abbreviates the idea of 금방 사랑이 식다. It describes affection or initial excitement fading soon after it begins, often paired with 금사빠 in discussions of dating habits.
Also written or said as geumsasik
2. The nuance
The two labels describe different directions: falling fast and cooling fast. They are casual self-descriptions, not clinical categories or an excuse to treat someone carelessly.
3. Examples
“처음의 설렘이 빨리 사라져서 스스로 금사식 같다고 느꼈어.”
The early excitement faded quickly, so I felt like someone whose feelings cool fast.
“금사식이라는 말로 넘기기보다 내 마음을 솔직히 설명했어.”
Instead of hiding behind that label, I honestly explained how I felt.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.