A mouthful of water that, after a night on the ale, hits your stomach and makes it very clear upon impact that it has no intention of staying down, and duly bounces back up, usually with disastrous consequences.
"It was touch and go for a while and I thought I might get away with it, but then I had some bouncy water and it was time for a chat on the big white telephone."
by Chris Lockie September 29, 2006