EXPERIENCEDsomeone who lives and works in a city and has no experience of anything outside it – often used to show disapproval 〔對城市以外的情況毫無體驗的〕城裏人,城市居民〔常含貶義〕
Examples from the Corpus
city slicker• Once you get accustomed to life on the range, it's hard to go back to being a city slicker.
Origincity slicker
(1900-2000) slicker from slick“to deceive cleverly”((19-20 centuries)), from SLICK1