ass Meaning, Definition & Usage

  1. noun the fleshy part of the human body that you sit on
    bum; seat; stern; keister; tail end; prat; bottom; rear end; buns; tail; tush; rump; fanny; behind; tooshie; hind end; posterior; hindquarters; butt; nates; rear; arse; buttocks; backside; derriere; can; fundament.
    • he deserves a good kick in the butt
    • are you going to sit on your fanny and do nothing?
  2. noun a pompous fool
  3. noun hardy and sure-footed animal smaller and with longer ears than the horse
  4. noun slang for sexual intercourse
    screw; piece of tail; fucking; shtup; screwing; fuck; roll in the hay; nookie; piece of ass; nooky; shag.
  5. noun a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
    arsenic; atomic number 33; As.
  6. noun a United States territory on the eastern part of the island of Samoa
    American Samoa; AS; Eastern Samoa.

WordNet

Ass noun
Etymology
OE. asse, AS. assa; akin to Icel. asni, W. asen, asyn, L. asinus, dim. aselus, Gr. also to AS. esol, OHG. esil, G. esel, Goth. asilus, Dan. æsel, Lith. asilas, Bohem. osel, Pol. osiel. The word is prob. of Semitic origin; cf. Heb. athn she ass. Cf. Ease.
Definitions
  1. (Zoöl.) A quadruped of the genus Equus (E. asinus), smaller than the horse, and having a peculiarly harsh bray and long ears. The tame or domestic ass is patient, slow, and sure-footed, and has become the type of obstinacy and stupidity. There are several species of wild asses which are swift-footed.
  2. A dull, heavy, stupid fellow; a dolt. Shak.

Webster 1913