wash down

wash down (third-person singular simple present washes down, present participle washing down, simple past and past participle washed down)

1. To help to swallow by drinking a liquid, after eating something, or taking a pill.

   I had a nice beef sandwich washed down with a pint of bitter.

2. To wash something completely from top to bottom.

   You must wash the wall down well before painting.

• downwash