Learn English – What does “two-bit (jerk)” mean

It means that she considers the attorney to be an unimportant clerk rather than an important lawyer

Two bit: small change (ie cheap/unimportant, in this context)-

According to WikiPedia A bit is :

The word bit is a colloquial expression referring to specific coins in various coinages throughout the world.
"Two bits" or "two bit" continues in general use as a colloquial expression, primarily because of the song catchphrase "Shave and a Haircut, two bits." As an adjective, "two-bit" can be used to describe something cheap or unworthy.

Paper pusher: someone who does nothing but push paper around on a desk or delivers paper from one office to another in a push cart

This is in reference to a 'blue movie', a euphemistic term for a pornographic film.

It has since been toned down somewhat and phrases like a bit of blue can be used to say that something is 'adult' in nature. Often this includes dealing with sexual material but doesn't necessarily mean visually pornographic; a comedian who tells jokes with a sexual theme could be called 'a bit blue'.

going a bit blue then would mean that the programme/character in question is normally 'clean' but has begun to include more adult themes.

It would appear that the term has been used thus since the early 1800s, originating in Scotland, though a clear connection between the colour and the connotation has not been settled on.

N.B.: Bolton comedian Peter Kay is famous in England and well known for his family friendly stand up material. In his shows he will occasionally tell a joke with some sort of subtle sexual reference or other 'adult' theme and then follow the joke by saying 'a bit of blue for the dads there'.