shoot one's bolt

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shoot one's bolt (third-person singular simple present shoots one's bolt, present participle shooting one's bolt, simple past and past participle shot one's bolt)

1. (idiomatic) To use up one's resources, especially a singular one or one not readily restored.

   We were playing checkers and, although I'd started off well, I seemed to have shot my bolt too soon.

   • 1968, Kim Philby, My Silent War, page 34:

     The war situation was going from bad to worse. The Greek army, facing the Italians in Albania, had shot its bolt by spring. The Yugoslav revolution of April, for which SOE claimed some credit (our people had been there and post hoc, propter hoc), was followed by the prompt invasion of Yugoslavia and occupation of Greece.

2. (slang) Of a male, to ejaculate.
   • 1982, Paul Radley, My Blue-Checker Corker and Me, Sydney: Fontana/Collins, page 141:

     ‘Holy-Jesus-fuckin’-Christ! I’m comin’! I’m shootin’ me bolt! I’m gonna fill ya twat with spoof!’

• (figuratively)
  • blow one's load
  • shoot one's load
  • shoot one's wad