Originally Posted by RemingtonDave
A windshield washer pump and tank in the trunk with the nozzle pointing up 45 degrees from under the bumper would provide some entertainment for all sorts of tailgaters.
My friend did that on his jeep. It'* a cherokee with the rear wiper and washer fluid. He removed the wiper and put something in where the washer fluid shoots out so it'* angled straight back. It'* got about a 10-15 foot range on it too. Very cool.