1. Vulgar slang for anus
   "He used the crude term 'asshole' instead of the proper anatomical name";
    
2. Insulting term of address for people who are stupid, irritating or ridiculous
   "Don't be such an asshole and apologize for your mistake";

Derived forms: assholes

Type of: anus, disagreeable person, unpleasant person

Encyclopedia: Asshole