whoo

An expression of delight and excitement.

The wailing cry of a ghost.

"You are mistaken; I am a ghost; whoo!" said I, choking back my rage.

Then he held up his hands and let out a weak ghost-howl. "Whoo?" he moaned, in a tiny voice.

The cry of an owl

A "whoo" sound; the cry of an owl or similar.

To make a whoo sound, of delight, whistling, or of an owl etc.

"Upon my honour!" cried he, "there was never before such a beautiful thing in Nature or Art as you look, 'Cousin' Tess ('Cousin' had a faint ring of mockery). I have been watching you from over the wall—sitting like Im-patience on a monument, and pouting up that pretty red mouth to whistling shape, and whooing and whooing, and privately swearing, and never being able to produce a note. Why, you are quite cross because you can't do it."