(biblical) the Deluge, the Flood / (by extension) deluge (large amount of precipitation) / (figuratively) deluge (an overwhelming amount of something)

(figuratively) to wait till doomsday, to wait for something that will never happen

Alternative form of après moi le déluge

Used to indicate indifference to events that will happen after one’s death, or to indicate one’s own importance in maintaining order; after us the deluge

plural of déluge