minimum wage slave
someone who works very hard for very little and doesn't get much satisfaction from their job. They can't leave as they have a family to support or think that they won't be able to find a better job.
"I hate this job and I'm sick of being a minimum wage slave. Oh well, I'm going to win the lottery soon anyway."
minimum slave
Someone who works for minimum wage in a country where minimum wage is not enough to live on without extra state support or benefits.
Since the postindustrial decline in the rust belt the service industry has been built by the tool of minimum slaves.