Define Nothing Less Meaning

Have you heard of the vapors? Perhaps you've even heard of With broken wings or even better R and B yes its horrid.. Yes Nothing less is just as bad.

Two {suburban mom}'s are arguing.
Helen- YOUR'E ARE A PIECE OF SHIT
Suzanne- Well, your'e a pouting crybaby that is a good for nothing little bitch who doesn't do anything except screaming 'youre a piece of shit' to people and fucking every boyfriend of mine! Thats what you are, {nothing more nothing less}. So shut the fuck up, Helen!