Do you think the farmer gets anything out of it except a red neck and a hump in his back?
你认为农夫除了红脖子和背驼之外还能从中得到什么吗?
2008 English Cafe
And since these are people who are working outside, in what we may refer to as " manual labor, " working with their hands, they would get a red neck from being in the sun all day.
The term redneck is a derogatory term chiefly used for a rural poor white person of the Southern United States. Its usage is similar in meaning to cracker (especially regarding Georgia and Florida), hillbilly (especially regarding Appalachia and the Ozarks), and white trash (but without the last term's suggestions of immorality).