Most full of bilge or most disgusting and foul; the superlative form of bilgy.
Superlative form of 'bilgy,' combining 'bilge' (Middle Dutch 'bulge') with the adjective suffix '-y' and superlative suffix '-est'. This creates the strongest negative descriptor in the bilge-related adjective family.
The bilgiest parts of old wooden ships were absolutely disgusting—they'd accumulate rat feces, rotting food, tar, and dead creatures—which is probably why sailors created such vivid vocabulary to describe these horrors!
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