Definition:
The word "waul" is a verb that means to make high-pitched, whiney noises. It is often associated with the sounds that certain animals make, especially young animals like kittens or lambs.
In a more literary or poetic context, "waul" can be used to evoke a sense of sadness or a plaintive feeling. For example, "The wind wauls through the trees, echoing the loneliness of the night."
While "waul" primarily refers to high-pitched noises, it can also be metaphorically used to describe someone who is complaining or expressing distress in a loud manner.
There are no widely known idioms or phrasal verbs that include "waul," but you might hear phrases like "waul like a banshee," which means to cry or complain very loudly.
In summary, "waul" is a specific term used to describe high-pitched, whining sounds, often made by animals or sometimes by people when they are upset.