From Longman Dictionary of Contemporary Englishworking stiffworking stiff informalAmerican EnglishWORKER an ordinary person who works to earn enough money to live → stiff
Examples from the Corpus
working stiff• This was my first residence as a working stiff.• He was rising in the world, a celebrated hijacker, and Charlie was a working stiff with money problems.• Instead of working stiffs, we get craftsmen.• They're ordinary working stiffs, doing their job.• My dad was a poor working stiff.From Longman Business Dictionaryworking stiffˌworking ˈstiff noun [countable] American English informal an ordinary person who works to earn enough money to liveMost of the men are ordinary working stiffs, doing their job. 