When a girl is standing up and her back is bent(ass out, head up) and someone opens a can/bottle of root beer, then pours it down her back starting from the bottom of her neck, as another person is at the bottom of her ass with his/her mouth open ready to sip down the root beer.
damn we should see how many girls would be down to let us root booty them.
by CMDRUNK October 8, 2013
Get the Root Booty mug.