Please tell me what does "she's just hard down mean" mean?
This is a dialogue of a movie that called "Bernie"..
Marjorie is a widow live in a small town, and she is always hard to get along with..Bernie is a mortician, he is Marjorie's only friend.
When Marjorie's sister talk about Marjorie with Bernie, she sais: "She's my sister, and I guess that I should love her, but she's just hard down mean."
I know that "she is just mean" means she is a unkind woman. in chinese is "刻薄的" or "卑鄙的" ..but I don't understand that why put "hard" and "down" with "mean"together..Is it a common phrase?
Thank you for your answer.