the women raised a deafening ululation of sorrow that echoed off the cavern walls for miles around.
Alice Walker. The Color Purple (1982)
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a single howl rose in the night, climbing, ululating, a silver chime of desperate horror … the howl of a wolf,
Stephen King. The Stand (1990)
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so infatuated with their imaginary “liberty” were these singular people that the contemplation of all this crime abated nothing of the volume and persistence of their patriotic ululations, and affected not their faith in the perfection of their system.
Ambrose Bierce. The Collected Works of Ambrose Bierce, Volume 1