wreckserciser
n.— «As minds turn to valiant New Year resolutions like getting in shape after an overindulgent Christmas, Halifax Home Insurance warns dedicated workout fans to beware the risks of vigorous exercise in the home. It seems a quarter of a million Britons each year damage their properties and possessions while exercising at home, leading Halifax to dub them “wrecksercisers.”» —“Halifax: get in shape after Christmas—but watch the china” Fair Investment Company Dec. 30, 2006. (source: Double-Tongued Dictionary)