From Longman Dictionary of Contemporary Englishold batold batspokenWOMAN an unpleasant old woman → bat
Examples from the Corpus
old bat• Most of our women in the House are frightful old bats.• She's a real old bat, she is.• I stuck some in once when we were a bit short and the old bat threatened to stop it out of my wages.• The old bat led me astray in more ways than one.• The old bats included a plastic, an aluminum and a wooden one.• But smoking was obviously kosher as far as this old bat went. 