scratch someone's back 등을 긁어주다, 도와주다So you scratch their backs, and..You scratch my back and I'll scratch yours.I don't mind helping my roommate out this time, he has scratched my back many times. night in, night out 집 안에서 차분하게 보내는 밤, 집 밖에서 놀면서 보내는 밤We were having a night in.I'm just going to have a quiet night in with my partner this Friday.No thanks. I'm planning on having a night in.Let's ..
