like water
Excessively or wastefully. Used in the phrase "spend money like water." For years he was an absolute penny-pincher. Now that he's got a steady job, he spends money like water.
like water
in great quantities. 1991 Mark Tully No Full Stops in India Digvijay's supporters allege that George spent money like water to bribe the local leaders.
like ˈwater
(informal) in large amounts; in great quantity: They’re still spending money like water.