gargle

Concise Oxford English Dictionary © 2008 Oxford University Press:
gargle/ˈɡɑːɡl/

▶verb wash one's mouth and throat with a liquid that is kept in motion by breathing through it with a gurgling sound. ▶noun

• 1 an act of gargling.

  ■ a liquid used for gargling.

• 2 Brit. informal an alcoholic drink.

– origin C16: from Fr. gargouiller ‘gurgle, bubble’, from gargouille (see gargoyle).