a wang dang doodle.
never heard that before. looked it up. found some ODD definitions here http://www.urbandictionary.com/define.php?term=wang dang doodle including this:
4. wang dang doodle 7 up, 51 down
A cheese-string found in one's armpit, mysteriously.
The other night, I was scratching myself, and I totally found a wang dang doodle, Dandy!