Bilgesack /bɪldʒsak/
noun
a troll organ, possibly comparable to the human bladder.
bilge /bɪldʒ/ noun
1. the area on the outer surface of a ship’s hull where the bottom curves to meet the vertical sides. 2. dirty water that collects inside the bilges. noun: bilge water; plural noun: bilge waters
late 15th century: probably a variant of bulge.
sac /sak/ noun
1. a hollow, flexible structure resembling a bag or pouch. 2. a cavity within an organism, enclosed by a membrane and containing air, liquid, or solid structures.
mid 18th century (as a term in biology): from French sac or Latin saccus ‘sack, bag’.













