blauer Dunst

== German == === Etymology === Literally, “blue haze”. From blau referring to delusion as in the sense “drunk” and in blaues Wunder (“something utterly unexpected”). The sense “cigarette smoke” thence, humorously after the greyish, bluish colour. === Noun === blauer Dunst m (strong, definite nominative der blaue Dunst, genitive (des) blauen Dunstes or (des) blauen Dunsts, no plural) (idiomatic) idle talk, void promises (idiomatic) cigarette smoke