hatch

batten down the hatches

to prepare yourself for a difficult period by protecting yourself in every possible way. When you're coming down with a cold, all you can do is batten down the hatches and wait for the body to fight it off.

See also: down

Down the hatch! (informal)

something that you say before drinking an alcoholic drink, especially when you are going to drink it all without stopping. And a whisky for you. Down the hatch, as they say.

See also: down