'Waul' definitions:

Definition of 'waul'

(from WordNet)
verb
Make high-pitched, whiney noises [syn: squall, waul, wawl]

Definition of 'Waul'

From: GCIDE
  • Waul \Waul\, v. i. [Of imitative origin.] To cry as a cat; to squall; to wail. [Written also wawl.] [1913 Webster]
  • The helpless infant, coming wauling and crying into the world. --Sir W. Scott. [1913 Webster]