The backside rock and roll is another classic ramp trick that will keep you amused for years and allow you to link together all of the tricks you've learned so far.
For a Backslide Rock & Roll, go up as if you're going to do a Rock Fakie.
Once your wheels have got over the coping and your board's resting on it, turn your shoulders away.
Put your weight on your back foot. Lift your board over the coping and make contact with all four wheels on the ramp, and ride away.