It means they won't work hard at doing a dirty job. (mindbodygreen.com)
-- In the city of Ergastulum, which is run by four crime families, a pair of «Handymen» provide a service doing dirty jobs for anyone who calls and hires them. (goodereader.com)
Wenger will continue to give the job to DuckerSucker cos he needs him to continue doing the dirty job of collection debt (fine) from the players! (justarsenal.com)