The protuberant part of a cask, which is usually in the middle.
- Nautical The rounded portion of a ship's hull, forming a transition between the bottom and the sides.
- Nautical The lowest inner part of a ship's hull.
- Bilge water.
- Slang Stupid talk or writing; nonsense.
- The bulging part of a barrel or cask.
- Nautical To spring a leak in the bilge.
- To bulge or swell.
- Nautical To break open the bilge of.