1. superlative form of bilgy; most resembling or containing bilge; foul-smelling or unpleasant
Usage: informal; chiefly British

Examples

• The bilgiest water in the ship's hold needed to be pumped out immediately.
• That was the bilgiest excuse I've ever heard for being late.
• The old warehouse had the bilgiest smell after the pipes burst.
• He complained that the bilgiest part of the job was cleaning the basement.
• The bilgiest weather of the season made everyone stay indoors.