I. ˈbilj noun
Etymology: probably modification of Middle French boulge, bouge leather bag, curved part — more at budget
Date: 1513
1. : the bulging part of a cask or barrel
2.
a. : the part of the underwater body of a ship between the flat of the bottom and the vertical topsides
b. : the lowest point of a ship's inner hull
3. : stale or worthless remarks or ideas
II. intransitive verb
( bilged ; bilg·ing )
Date: 1728
: to become damaged in the bilge