Out Of the Blue By EvilJanuary 15, 2014February 25, 2020Popular Expression Out Of the Blue = something happened all of a sudden, unexpected Ex: It was a beautiful day, then “out of the blue” it started raining hard. Ex: “Out of the blue,” we heard a gunshot. We didn’t know where it came from. Ex: Everybody was having a great time at the party, then “out of the blue,” the woman started crying. BACK to Popular Expressions