ASSHOLE
arse, arsehole, asshole, bunghole
(noun) vulgar slang for anus
asshole, bastard, cocksucker, dickhead, shit, mother fucker, motherfucker, prick, whoreson, son of a bitch, SOB
(noun) insulting terms of address for people who are stupid or irritating or ridiculous
Source: WordNet® 3.1
Etymology 1
Noun
asshole (plural assholes) (US)
(vulgar) The anus.
(vulgar, pejorative) A jerk; an inappropriately or objectionably mean, inconsiderate, contemptible, obnoxious, intrusive, stupid, and/or rude person.
(vulgar) An unpleasant or uninviting place.
(vulgar) By extension, anything unpleasant or undesirable. Often used appositionally.
Usage notes
• Asshole is an American English form, the corresponding British English form is arsehole.
• As a pejorative for persons, this term is less vulgar and intense than fucker or cunt. While not intrinsically gender-specific, it is primarily applied to men; gender-specific pejoratives such as bitch are often used for women.
Synonyms
• (contemptible person): jerk
• (contemptible person): dick
• See anus, jerk, or Thesaurus:antonyms of pleasant.
Etymology 2
Noun
asshole (plural assholes)
(obsolete, Scotland and Northern England) A receptacle under a fire grate for collecting ashes.
Source: Wiktionary