- Any of several hoofed mammals of the genus Equus, resembling and closely related to the horses but having a smaller build and longer ears, and including the domesticated donkey. (noun)
- A vain, self-important, silly, or aggressively stupid person. (noun)
- The buttocks. (noun)
- The anus. (noun)
- Vulgar Slang Sexual intercourse. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.