battleship
A very large foot or shoe. Typically used in the plural. I bet that store doesn't have shoes big enough for your battleships!
enough (something) to sink a (battle)ship
Referring to a very large quantity of something. Over the years, we've accumulated enough Christmas decorations to sink a ship. Where are we going to put them all?
enough to sink a ship
Also, enough to sink a battleship. A more than sufficient amount, as in They brought enough food to sink a ship. [Colloquial; mid-1900s]
gunboats
and battleships n. big feet; big shoes. Get those battleships off my sofa! Hasn’t he got the biggest gunboats you ever saw?
battleships
verb