Definition of know someone in the biblical sense in US English:

know someone in the biblical sense

phrase

informal, humorous
  • Have sexual intercourse with someone.

    • ‘Well I never knew her in the biblical sense, we just bumped into each other at some party and you know how it goes.’
    • ‘I didn't know him from Adam, though it might have been nice to know him in the biblical sense, ha ha.’
    • ‘‘I take it you know her?’ Holly asked. ‘Yes,’ Pete said, ‘And, because I know you're curious, yes, I knew her in the biblical sense as well.’’