눈에 콩깍지가 씌다 (nun-e kongkkakjiga sseuida)

Literally: To have bean pods over one's eyes

Example: “눈에 콩깍지가 씌어서 그 사람 단점이 하나도 안 보인다.” — Love is blind; she can't see a single fault in him.

English equivalent: Love is blind

Origin: Two competing folk explanations circulate, and Korea's own National Institute of Korean Language notes that neither is documented well enough to call it more than popular folk etymology. One points to traditional threshing, where beating soybean stalks with a flail (dorikkae) to separate the beans could send bits of bean pod flying, occasionally catching on or sticking to a worker's eyelid — extended figuratively to someone whose judgment has similarly gotten "stuck." A second theory reaches for the physical qualities of the pod itself: soybean skins soaked in water become thin and semi-translucent, and something translucent covering the eye would blur and distort a person's view of whatever — or whoever — they were looking at, exactly the way infatuation is said to blur someone's judgment about the person they've fallen for.