Noun
hillbilly - A person from a rural, mountainous area of the United States, especially the Appalachians. Can be used in an insulting manner.

The hillbilly family made a store in Alabama, and its theme is that the families in rural America may not be sophisticated, but they have a big heart and close family ties.
hysteria - A state of extreme excitement, fear or anger in which a person, or a group of people, loses control of their emotions and starts to cry, laugh, etc.

There was almost mass hysteria when the band played their final song and some in the crowd rushed towards the stage.