out of blue
"Out of the blue" is an informal English language idiom that describes an event that occurs unexpectedly, without any warning or preparation. It is used as an adverb. The "blue" in the phrase refers to the sky, one from which a sudden thunderstorm is unexpected.
Synonyms for out of blue
On this page, you will find 30 slang terms related to out of blue. Some of the top words include: holy holy, Der, brick, holyfuckingshit, random, and 25 more.