Green’s Dictionary of Slang

bung n.2

[SE bung, the mouth of a cask, the stopper of a barrel of beer; note Welsh bwng, an orifice]

1. as a hole, lit. or fig.

(a) [late 18C+] the anus.

(b) [19C+] (also bung head) a general insult.

2. in the context of brewing.

(a) [mid-19C–1900s] a brewer (also personnified with a capital B); a brewery.

(b) [late 19C–1950s] beer.

(c) [mid-19C–1910s] an inn-keeper or publican; thus the bung ball, an annual publican’s dance.

(d) [1910s] (Aus.) generic for the brewery interest; also attrib.

In compounds

bung-juice (n.)

[late 19C] beer, stout.

bungwad (n.) [sense 1a + SE wad] (US)

1. [1920s] lavatory paper.

2. [1990s+] a general insult.

In phrases

hit the bung (v.)

[1930s] (US) to get drunk.

SE in slang uses

In compounds

bung-starter (n.) [SE bung-starter, an implement used to remove the bungs from casks of beer]

[late 19C–1930s] (US) a bartender; a publican.

In phrases

pull the bung out (v.)

[1950s] (US) to deflate someone’s ego, of an object, to wreck.

put a bung in it (v.)

1. [late 19C] to stop talking, also as imper.

2. [1910s] to shut the door.

take the bung out of (v.)

[2000s+] to tease, to deflate someone’s ego.