Together with the idioms starting with blue, also see in between a rock and a tough place (devil and deep blue sea); black and blue; bolt from the blue; have the blues; into skinny air (the blue); like greased lightning (a blue streak); once in the blue moon; out of https://marcoictoe.onzeblog.com/36129149/the-fact-about-healthy-french-bulldog-puppies-available-in-japan-that-no-one-is-suggesting