Podunk

 
Pronunciation: /ˈpəʊdʌŋk/

noun

[usually as modifier] US informal
  • a hypothetical small town regarded as typically dull or insignificant: [as modifier]: she lived in a Podunk town notable for nothing except the girls' school where she taught art

Origin:

mid 19th century: a place name of southern New England, of Algonquian origin