Some are wild guesses: Seldom = once in a blue moon High-grade securities = blue-chip stocks Policeman = blue hat Kentucky region = Blue Licks Sailor = boy in blue Architect's plans = blueprint Prize = blue ribbon Wife slayer = ? Delaware = Blue Hen State Nursery rhyme character = Little Boy Blue Stocks and bonds sales regulations = blue sky laws Complete meal on one dish = blue plate special High society register = blue book A well-born person = blue blood To edit = ? Oyster = blue point Depressing work day = blue monday
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