phrase informal If you use something like it's going out of fashion, you use large amounts of it very quickly: 大量快速地(使用) Emma spends money like it's going out of fashion.埃玛花钱如流水。 Unfortunately, the truck drinks petrol like it's going out of fashion. The managers bought shares like it was going out of fashion. I was slapping on sunscreen like it was going out of fashion. He isn't the only star to spend money like it's going out of fashion. See also