1121일차 오늘의 표현은 Have a crush on~푹빠지다 Hit it off~죽이잘맞다 chemistry. I have a crush on the guy next door. He told me he had a crush on you. I hit it off with your friend sam. I see you and Jin really hit it off. we hit it off the first time we met. You definitely hit it off the other night.