What metaphors are used in Little Brother by Cory Doctorow?

Marcus called his jailer in DHS’s prison “Severe Haircut or Severe Haircut woman/lady”. In saying so, he shows that it doesn’t matter what name she has and who she is in general. She is faceless for him, she’s just doer of her job. Also thus the author shows that she is just one among mass of others, who are heartless in some way, who blindly obey their leaders and don’t have their own opinion.