Definition of "ass" in English

noun

1. Any of several species of horse-like animals, especially Equus asinus, the domesticated of which are used as beasts of burden.

2. (often vulgar through confusion with other word) A stupid or jerky (inconsiderate, etc) person.

   • Near-synonyms: fool, idiot, jerk, asswipe; see also Thesaurus:jerk
   • That new kid left the cap off the syrup bottle again! What an ass.
   • He is such an ass for leaving the house door open.

3. (printing, slang, obsolete) A compositor.

noun

1. (countable and uncountable) The buttocks.

2. (countable and uncountable) The anus.

   • That does it! Now listen! Why is it that everything today has involved things either going in or coming out of my ass? I’m sick of it! It’s completely immature!

3. (synecdochically, uncountable) Sex; a person to have sex with; with vulgar emphasis on their corporeality (their body) over their personhood.

   • I'm going to go down to the bar and try to get me some ass.
   • piece of ass

4. (uncountable) Used in similes to express something bad or unpleasant.

   • I feel like ass today.
   • This room smells like ass.
   • What a load of ass.

5. (synecdochically, countable) A person; the self; (reflexively) oneself or one's person, chiefly their body. By extension, one's personal safety, or figuratively one's job, prospects, etc.

   • Get your lazy ass out of bed!
   • We risk our asses out there every day.
   • I'ma get medieval on your ass!
   • Mess up one more time and it's your ass (i.e. you're fired)

adjective

1. (vulgar, slang, Canada, US) Of low quality; bad.

particle

1. Synonym of -ass (used to intensify an adjective).

   • That was one big ass fish!
   • That's an expensive ass car!