Definitions
There are 2 meanings of the phrase
Wash Down.
Wash Down - as a verb
Eat food accompanied by lots of liquid; also use metaphorically
Example: "She washed down her dinner with a bottle of red wine"
Example Sentences
"She used a hose to wash down the patio furniture."
"He always likes to wash down his meal with a glass of water."
"We need to wash down the walls before we can start painting."
"The rain helped to wash down the dirt from the car."
"After a long day of work, I like to wash down with a cold beer."