Chav defined?

The BBC reports that three sisters aged twelve, fourteen and sixteen have each given birth within ten months of each other. The sisters are called Natasha, Jade and Jemma. Their children are called T-Jay, Amani and Lita. They rely on state benefits to look after the children, but sold their story to the Sun and featured in a BBC3 documentary. I don't know the meaning of life, but I'm not convinced that this is it.