A Quick and Simple Dictionary

bung

1. Noun.  A stopper, alternative to a cork, often made of rubber used to prevent fluid passing through the neck of a bottle, vat, a hole in a vessel etc.
2. Noun.  A cecum or anus, especially of a slaughter animal.
3. Noun.  (slang) A bribe.
4. Verb.  (transitive) To plug, as with a bung.
5. Verb.  (transitive, informal) To put somewhere without care; chuck.
6. Verb.  (transitive) To batter, bruise; to cause to bulge or swell.
7. Verb.  (transitive) To pass a bribe.
8. Adjective.  (Australia, slang) Broken, not in working order.