a bear or other dangerous wildlife disguised in human clothing.
"Man, that bear with the hat was totally ranger danger."
by Gavin Card February 28, 2008
What is yelled out in a state or national park when you are about to be busted for something illegal and there is a chance of getting away. Meant to be a spin-off of "stranger-danger"...rangers (like smokey the bear) are the ones that will bust you in a park.
"hide the pot and book it cause there's some major rangerdanger comming this way"
by Winn Dixie July 20, 2006