Literally, your ass is your buttocks. In slang, an ass is a jerk or an idiot. Neither is highly regarded.

When people are being slangy or folksy, you hear this word a lot: "Get off your ass!" "Watch your ass!" "Why are you such an ass?" "Get your ass in here." Though this isn't one of the very worst swear words, it is considered harsher than butt and lots of people consider ass to be an inappropriate word. You would be a lot better off using softer words like bottom or tush in most situations. Sometimes ass can also mean sex — another use worth avoiding.

Definitions of ass
  1. noun
    hardy and sure-footed animal smaller and with longer ears than the horse
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    Equus asinus, domestic ass, donkey
    domestic beast of burden descended from the African wild ass; patient but stubborn
    jack, jackass
    male donkey
    jennet, jenny, jenny ass
    female donkey
    wild ass
    any of several equine mammals of Asia and northeast Africa
    small donkey used as a pack animal
    British informal for donkey
    African wild ass, Equus asinus
    a wild ass of Africa
    Equus kiang, kiang
    wild ass of Tibet and Mongolia
    Equus hemionus, onager
    Asiatic wild ass
    type of:
    equid, equine
    hoofed mammals having slender legs and a flat coat with a narrow mane along the back of the neck
  2. noun
    a pompous fool
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    type of:
    fool, muggins, sap, saphead, tomfool
    a person who lacks good judgment
  3. noun
    the fleshy part of the human body that you sit on
    synonyms: backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush
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    type of:
    body part
    any part of an organism such as an organ or extremity
  4. noun
    slang for sexual intercourse
    synonyms: roll in the hay
Word Family

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