noun

• (slang) An object shaped like a banjo, especially a frying pan or a shovel.
• (UK, Dagenham) A cul-de-sac with a round end.
  "They all came back here — we cleared the room and put up tables for the reception — and then we went to another house on the banjo for a "knees-up"."
• (mining) A miner's round-nosed shovel.
• (Malaysia) An egg sandwich fried on a flattop and served in a bun as would a burger, ellipsis of egg banjo.

verb

• (transitive, slang, British) To beat, to knock down.
  "Admitting the assault, the husband said that he had given her a 'banjoing' but that she had asked for it."
• (transitive, slang, British, military) To shell or attack (a target).
  "Riding reported that on the day Mayne had asked for DZ coordinates, their base had been banjoed by the Germans."