work in

/ˈwɜrkˌɪn/
noun
  1. A protest in which workers occupy their workplace and continue working, refusing to leave, often to prevent a shutdown or layoffs.
    • The union organized a work-in to demand better severance packages.
    • The employees staged a work-in after the company announced it would close the factory.
    • During the work-in, the staff kept the store open and ran it themselves.