go bail

go bail

1. To pay bail in order to get an accused defendant out of jail after an arrest or pending trial or appeal.
2. (figurative) To be certain; to be sure of something.
   • 1912, Arthur Conan Doyle, The Lost World […], London; New York, N.Y.: Hodder and Stoughton, →OCLC:

     "No, young fellah my lad, there is no use deceiving yourself. I'll go bail for it that nothing has ever been written upon this paper."

• Baglio, bolgia