Lewis & Short

ex-tĕrĕbro, no perf., ātum, 1, v. a., to extract by boring, to bore out (very rare).

  1. I. Lit.: ex eo auro, quod exterebratum esset, Cic. Div. 1, 24, 48.
  2. II. Trop., to extort, obtain by force: numquam hercle istuc exterebrabis tu, ut, etc., Plaut. Pers. 2, 2, 55.