bilges n in a vessel with two hulls, an enclosed area between the frames at each side n water accumulated in the bilge of a ship n where the sides of the vessel curve in to form the bottom v cause to leak v take in water at the bilge Usage(s) They're not wearing uniforms or talking about bilges and barges. Men who scarcely ever fixed a leaky faucet or pushed a lawnmower are busily hosing decks, rubbing brightwork, varnishing mahogany, bailing bilges. Aboard their ships, filthy water and human and animal wastes sloshed around in the bilges for a month or more. Synonym(s) bilge bilge water take in water