From Wiktionary, the free dictionary
like there were no tomorrow
- Alternative form of as if there were no tomorrow.
1998, David M Thomas, chapter 6, in Anger’s Violin, Dingle, County Kerry: Mount Eagle Publications Ltd., →ISBN, page 114:Already giving out under the heat or the sheer oppression of numbers, they guzzle mineral water like there were no tomorrow.
2015, Jose Thekkumthala, “The Arrest”, in Amballore House, →ISBN, pages 270–271:All they could think was to run, and run they did like there were no tomorrow.
2015, Shanny [pseudonym; Lashandria Smith], “The Day of the shower”, in Friends & Lovers, part 2, Leo Sullivan Presents, →ISBN, page 193:I had been anticipating this food for so long that all mind was set on was eating like there were no tomorrow.