What is a godet? A godet (unlike a gusset) is an extra piece of fabric in the shape of a large triangle. It is added between seams to give flare. And example of where a godet would be added is in a skirt or skirt on a dress to give width and volume.
From a clothing alteration point of view a godet could be added to the back of a very tight fitting gown to allow the wearer more movement when walking.
A godet is a great way to remodel an old garment. Contrast fabric can be used. Blocking is where a contrast color is added, and a godet is no different.
Have a look in your wardrobe and see if you have a dress or skirt that could be revamped.
Happy altering
Judith aka genie