squaresville

[ skwairz-vil ]
/ ˈskwɛərz vɪl /

noun Slang.

a thing, place, etc., regarded as conventional, unfashionable, or conservative.

Origin of squaresville

1955–60, Americanism; square + -s- + -ville, formed by analogy with placenames ending in possessive -s (see 's1) and the suffix -ville