This is when someone falls asleep while taking a dump. Originated in the 1800's when a dutchmen unknowingly drank a magic potion in a drink gave to him by dwarfs. That night he fell asleep while taking a dump only to awake 20yrs later to find out all of his family and friends had died, moved away or gone to war all while he slept on the dumper.
Glen pulled a Rip Van Dumple the other night at the party. He drank so much he passed out sittin there on the toilet takin a dump.
by ooten November 05, 2007