When it comes to finding synonyms for the phrase "fills pockets", a few options come to mind. One possible synonym is the phrase "lines one's pockets", which means to make a lot of money, often through dishonest means. Another possibility is the phrase "fills one's coffers", which is similar but not necessarily illegal or unethical. A third option might be "enriches oneself", which is a more general phrase that can refer to any situation where someone gains wealth or resources. Other synonyms might include "accumulates wealth", "amasses a fortune", or "builds a nest egg". Ultimately, the specific synonym chosen will depend on the context and tone of the sentence.