on one's ass

Definition of on one's ass

chiefly US, informal + impolite

  1. :  criticizing someone or telling someone what to do She's always on my ass about getting a better job.

Word by Word Definitions

  1. :  any of several hardy gregarious (see gregarious 1a) African or Asian perissodactyl mammals (genus Equus) smaller than the horse and having long ears

    :  an African mammal (E. asinus) that is the ancestor of the donkey

    :  a stupid, obstinate, or perverse person

  1. :  buttocks

    :  anus

  1. : used as a postpositive intensive especially with words of derogatory implication


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the point at which something begins

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