lljkk - not sure that I like describing names as chavvy.
I know an absolutely not chavvy mother, who's son is called Mason, which I have heard described as chavvy on mumsnet.
I know people of my age group, with brilliant careers, and names that have been described as chavvy for their era. However these names, which include Haylie, Sharon, Dannielle, Charlene, Kayleigh, Lee, Darren, Ainsley - are not silly, such as Chardonay, Princess or Junior. I think its the silly names, which can prevent a job interview (re CV).