Fat Girl Energy

The equivalent of small dick energy. It has nothing to do with one's weight but everything to do with attitude. People with fat girl energy have a tendency to put others down in an attempt to elevate themselves, often disregarding the emotional effect it has on the person they are targeting. They come off as cocky with very little to back it up

Hannah keeps insulting her friends behind their backs for not making as much as them. That's some fat girl energy.