dampdown 

To urinate yourself whilst heavily inebriated, usually whilst passed out.

Gerry, if you crash here tonight, you're not gonna dampdown are you?
Nah, I've only had two pints.

dampdown by Johnny Mindless September 5, 2007

dumpdown 

A very large amount of snow.

"I can't come to work today, there has been a dumpdown and I am snowed in."

dumpdown by Adele Wolfe July 20, 2008