1724*Pipping-hot [see main sense]. 1789 Capt. Morris Bow Wow Wow in (new ed.) 253 Sit down neighbours all, and I'll tell a merry story... I had it pipping hot from Ebenezer Barber.
1947 15 Apr. 3/3 (advt.) Drop in for one of our Hot Home Made Butterhorns or Sweet Breakfast Rolls pipping hot from our ovens.
2004 (Nexis) 26 Feb. p18 Everything was crisp and pipping hot.