Is making fun of a pregnant womans weight considered bullying?

My daughter works as a leasing agent at an apartment community. She has endured many bullying remarks from her boss but the last one was the worst. She compared her pregnant weight gain to the "fat" actress, as she put it, Melissa McCarthy. And then stated in front of two other employees that she is the "fat" not the funny. and then told everyone to refer to her as Melissa not her real name which is Brittany. She has also been told by her boss to not talk to any of the residents about her pregnancy morning sickness because she didn't believe that she was ever really sick. She also told her she was to walk the community every morning to pick up trash and not to use the golf cart which is provided because she need the exercise.