Girls going commando with short skirts on Vespas... usually seen at stop lights.
"We spotted some scooter beaver while waiting at a stop light on Via Salaria."
"Thats one thing I miss about our trip to Rome - The random scooter beaver sightings."
"When she was airing out the clam on her Vespa, there was a bit of scooter beaver going on."
A group consisting of three or more hookers, usually on the street.
"There must be at least eight hookers in that crotch over there!"
"We just passed a crotch of hookers on Via Salaria."