금사빠 (geumsappa) — Someone who falls in love quickly.

Lesson 94 in our Korean Slang series, adapted from Korean Your Teacher Doesn’t Teach You by Injin Hwang. This expression appears in the book’s shortened expressions section.
What 금사빠 means
The abbreviation of 금방 사랑에 빠지는 사람 can be a playful self-description when you notice you develop crushes fast. The situation and tone help determine how natural the expression sounds.
A short conversation
A: 또 마음에 드는 사람 생겼어?
B: 응, 나 금사빠인가 봐.
A: Another crush already?
B: I guess I fall fast.
Use it with care
Avoid labeling another person’s feelings as shallow. Attraction and a lasting relationship are different things.
A neutral or polite alternative: 금방 좋아하게 되는 편이에요. — I tend to develop feelings quickly.
Try it yourself
Is 금사빠 safest as a self-description?
Answer: Yes, because it can judge someone else’s feelings. Read the Korean exchange aloud, then replace one detail with something from your own life.
Learn the rest of the series in Basic Korean Grammar. Find more expressions in the Korean slang book on Amazon.