Drops are the transitional move that connects your top rock to your foot work. There are a lot of different types and styles. As always with flavor being original beats all.
Every good b-boy has a couple of these in thier arsenal. Some are going to be a lot harder than others. Here is a couple moves to get you started.
Basic
Step back and away with your left leg
Place your left hand on the ground
Step Threw your left hand and right leg with your left leg
Back Sweep
Step back and away with your left leg
Place your left hand on the ground
Bend your right knee
Sweep your left leg behind your right foot
Front Sweep
Kick your left foot upward and to your side while you hop left
As you land your left foot bend your knee and lower your body to the ground
At the same time straighten your right leg
You should be crouched with your right leg extended
Sweep your right leg in front of your left foot
Corkscrew
Hop and cross your right foot in front of your left foot
They should be about shoulder length apart
Try to switch each foot
Turn your body to the right
At the same time bend your knees and lower your body to the ground
Try to keep your legs tight
Lavern Style
Cross your left foot in front of your right foot
Bring your right foot into the back of your left knee
Bend your left knee and fall forward
Catch your weight on your hands
Swipe
Jump forward and land with your weight on your left leg
During your jump lean backwards and catch your body weight on your right hand
Throw your upper body to the right
Kick your right leg up and in front of your left leg
Jump with your left leg
Place both hands on the ground and un twist your legs