haggis, noun : a traditionally Scottish dish that consists of the heart, liver, and lungs of a sheep or a calf minced with suet, onions, oatmeal, and seasonings and boiled in the stomach of the animal
From "Address To A Haggis"
Ye Pow'rs, wha mak mankind your care,
And dish them out their bill o' fare,
Auld Scotland wants nae skinking ware
That jaups in luggies;
But, if ye wish her gratefu' prayer
Gie her a haggis!
Haggis is the main ingredient of a traditional Burns Supper. Eat it with neeps (turnips) and tatties (potatoes), and wash it down with whisky (a lot of whisky).