wash down is a verb meaning "eat food accompanied by lots of liquid; also use metaphorically". It carries 2 recorded senses.
eat food accompanied by lots of liquid; also use metaphorically
“She washed down her dinner with a bottle of red wine”
“He washes down his worries with a nightly glass of whisky”
Definitions, synonyms and semantic relations for wash down come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.