BUNG, noun 1. The stopple of the orifice in the bilge of a cask. 2. The hole or orifice in the bilge of a cast. BUNG, verb transitive To stop the orifice in the bilge of a cask with a bung; to close up. BUNG'-HOLE, noun [bung and hole.] The hole or orifice in the bilge of a cask.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI