Yes, that's really what the exercise is called. You know you want to try it. From the name, you can tell that this exercise helps define your derriere and sculpt your legs.
Stand up on your left leg, then hinge forward from your hips, extending your right leg behind you until your leg and body are parallel to floor and arms extend downward. Return to standing, touching right toes to floor behind you, and repeat lunge. Do 10 to 20 reps. Switch legs and repeat.
Here is a video to aid you:
Cheers Eights & Weights!