willy wagtail: Meaning and Definition of

wil'ly wag'tail

Pronunciation: [key]
  1. a large black-and-white bird, Rhipidura leucophrys, of Australia and New Guinea, having bristles around the upper bill and a long, fanlike tail.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.