Webster’s Revised Unabridged Dictionary · 1913
Bung
Bung (bŭng), n. [Cf. W. bwng orfice, bunghole, Ir. buinne tap, spout, OGael. buine.] 1. The large stopper of the orifice in the bilge of a cask.
2. The orifice in the bilge of a cask through which it is filled; bunghole.
3. A sharper or pickpocket. [Obs. & Low]
You filthy bung, away. Shak.
Bung, v. t. [imp. & p. p. Bunged; p. pr. & vb. n. Bunging.] To stop, as the orifice in the bilge of a cask, with a bung; to close; — with up.
To bung up, to use up, as by bruising or over exertion; to exhaust or incapacitate for action. [Low]
He had bunged up his mouth that he should not have spoken these three years. Shelton (Trans. Don Quixote).