The act of separating the ass cheeks of a male or female, and then proceeding to take the pocket knife you've recently acquired from cabellas and shoving it in the asshole of said male or female and twisting. Cutting cornbread often occurs in the south or Midwest where brother and sister physical relationships are more frequent. Due to the act originating in the south it was named in the mid 2000's "cornbread" a favorite southern meal.

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