warm over

verb

1. To reheat food that was previously cooked.

   “If you have fried mush left in slices from breakfast, it can be warmed in the oven and made as good as new, or cold fried eggs can be warmed over, or new ones boiled in a trice.”

   “He warmed over the remains of last night's coffee, ate a beef sandwich, and then continued on toward Cheyenne, the mount readily taking the gallop asked of him.”

2. To present an unoriginal and hackneyed idea; to rehash.

   “Growth companies, like most others, face several challenges when developing a budget. They include: […] Building a budget that reflects the dynamic environment in which growth companies exist; not just "warming over" last year's version.”

   “He had never written about buttercups. Never. He had warmed over the dead gods of the months and he had written about wasps a couple of times, wrung some wonder from contemplating their world of insectual intent—the papery nests, the cells of mathematical perfection, the nurses and the workers, the grubs that waited for transformation behind their silken doors, their black eyes perfectly visible. . . . One column had been particularly good, something about wasps in the fall, crawling into houses or garages to prolong their lives a little.”

3. To fill with warmth and coziness

   “Too many sermons merely warm over our emotions. We are aroused, it may be, Sunday after Sunday, but men and women need more than arousing. They need instruction and training. They desire to know what to do.”

   “or these acts-Natalie Cole, Mariah Carey, Michael Bolton, Harry Connick Jr.-love can still conquer all, and cozy traditionalism warms over all of life.”

4. Used other than figuratively or idiomatically: see warm, over.

   “As the planet warms over the next decades, the Amazon will become a cradle of human discovery or an ecological crime scene.”