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horse's ass

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noun \ˈhȯr-səz-\

Simple Definition of horse's ass

  • : a very stupid or foolish person

Source: Merriam-Webster's Learner's Dictionary

Full Definition of horse's ass

often vulgar

  1. :  a stupid or incompetent person :  blockhead

Examples of horse's ass in a sentence

  1. She angrily told him to stop acting like a horse's ass.



Circa 1865

First Known Use of horse's ass

circa 1865


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