You'll only need three things to take part in 'hamstering': a car with a sunroof, a penis, and a willing partner.
If you haven't figured it out already, the man has to lie on top of the car and place his crown jewels through the sunroof so that the partner below can reach up and perform oral sex, in the same way a hamster drinks from its tube.


I hear Richard Gere has a different version of hamstering.