The Curious Dreamer’s Dream Dictionary
by Nancy WagamanSomething being lost or gone (such as time or energy) like “water down the drain.” The idea of getting rid of something (as in “washing your hands of” a particular matter).
Movement within a process, across space, or through time.
A blocked or backed up drain can represent a stalled process, or trouble stopping or getting rid of something.
See Sink, Pipe, Flow or River, Hose, Water, Vent, Valley, Canal, Passageway, Toilet, Funnel, Faucet, Blockage or Obstacle, Cleaning
Complete Dictionary of Dreams
by Dr. Mıchael LennoxIf the drain in your dream is functioning properly, all is well.
If it is not, there may be some need to examine why you are unable to let things go.