Pop out of the blue

Helena Maiz

Senior Member
Spanish Spain
Hello everybody:

Could someone help me to understand this expression?

Did they just pop out of the blue?

appear from no where,maybe?

thank you
  • lablady

    Senior Member
    English - USA
    Hello Helena,

    I agree with your interpretation (and SDLX's confirmation).:)

    It is my understanding that the "blue" in this phrase refers to the sky, so you can think of it as meaning that they seemed to come out of the air.


    Senior Member
    USA - English
    "The blue" is indeed the sky. This is related to the expression "like a bolt from the blue", which means to happen suddenly and without any warning. The "bolt" in that saying is a bolt of lightning, which you would not expect to come out of a clear blue sky as opposed to a sky full of storm clouds.
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