Hello,
About ( asshole ) :-
Main Entry: ass•hole
Pronunciation: \ˈas-ˌ(h)ōl\
Function: noun
Date: 14th century
1 usually vulgar : ANUS
2 a usually vulgar : a stupid, incompetent, or detestable person b usually vulgar : the worst place —used in phrases like asshole of the world
From ( http://www.merriam-webster.com )