He squeezed into/through the 'hatch' and crawled below deck.
They 'hatched' a plot to overthrow the government.
a whiskey that goes 'down the hatch' smoothly
(..) what’s left ofthis thing? - Well? Well, under the circumstances, I’d say the ability to pilot this thing is irrelevant. Strap yourselves in. Open all hatches. Extend all flaps and drag fins. - R-D : “Uh-oh” - We lost something. Not to worry. We are still flying halfa ship. - (..)2005 Star Wars: Episode III - Revenge of the Sith