From wikipedia:
Biscuits and gravy is a popular breakfast dish in the southern parts of the United States. It consists of buttermilk American biscuits covered in thick "country" or "white" gravy made from the drippings of cooked pork sausage, white flour, milk, and often bits of real sausage, bacon, ground beef, or other meat. The gravy is often flavored with black pepper. In some parts of the South this is also called sawmill gravy. The dish is best eaten soon after it is prepared, and is always served piping hot.
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In American English, a "biscuit" is a small form of bread made with baking powder or baking soda as a leavening agent rather than yeast. (Biscuits, soda breads, and corn bread, among others, are sometimes referred to collectively as "quick breads" to indicate that they do not need time to rise before baking.)
Biscuits are extremely soft on the inside and similar to scones or more closely to the bannock from the Shetland Isles.