roughneckPronunciation: /ˈrʌfnɛk/ informalDefinition of roughneck noun 1a rough and uncouth person: the usual roughnecks and gangsters 2an oil rig worker. verb [no object] (usually as noun roughnecking) work on an oil rig: his savings from roughnecking are goneroughneck in other Oxford dictionaries Definition of roughneck in the US English dictionary