Johnson hole

plural Johnson holes · alternative Jack Johnson hole

1. historicalslanggovernmentA large shell crater during the First World War.

   And to his immediate front, below the shelving ramp, a circular calm water graced the deep of a Johnson hole […]

   1937, David Jones, In Parenthesis, Part 3

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   A running joke is the supposed general who has fallen into a Johnson hole, and Bert's anxiety about whether he should ‘let him drift or fish 'im out’.

   2005, Gordon Williams, British Theatre in the Great War, page 196