Meaning ofroughneckin English

Noun

1. a person with rough manners; rowdy
   The roughneck at the bar started a fight with another customer.
2. a low-paid or dirty worker; labourer
   The oil company hired roughnecks to work on the drilling rig.
3. an oil rig labourer (manual worker)
   The drilling company employed several roughnecks to operate the heavy machinery.