Dictionary

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

A stupid person.

Example: That new kid left the cap off the syrup bottle again! What an ass.

Buttocks.

Sex.

Example: I’m going to go down to the bar and try to get me some ass.

Anus.

Used in similes to express something bad or unpleasant.

(unit of weight) A libra.

Any of several coins of Rome, coined in bronze or later copper; or the equivalent value.