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Definition

As far as possible in embarrassment or difficulty, or in business; deeply involved.

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Origins

Suggesting a wheel stuck in mud.

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In Context

  • "I am afraid A. F. S. (Dresden) gets "up to the hub" in engineering difficulties sometimes, but this will help him to appreciate the force, beauty and application of the expression."
  • "I was up to the hub in love, and was goin' into it like a locomotive."
  • "[…] I was like the wheels of the wagon, out of which I had made some of my capital — up to the hub in the mire of poverty, a heavy load forcing me deeper down, and no aid likely to be given me."