biscuit
n.— «He’s taking it down with a 9,000 pound iron ball, or, as he calls it, a biscuit. “Why do you call it a biscuit?” asked NewsChannel 11. “Well, ’cause it’s flat like a biscuit. You know how a muffin is made? Used to have a little lip going all the way around it, looks just like one and they just called it a biscuit.”» —“The Man Behind the Wrecking Ball” KCBD-TV (Lubbock, Tex.) May 21, 2004. (source: Double-Tongued Dictionary)