salami-slice

verb3

1. •
   (UK, informal) To engage in salami slicing.
2. •
   (UK, informal) To divide (something) into small groups or portions; specifically, to tackle (a big task, etc.) in incremental steps.

   • By salami slicing the disease into subgroups, it allows them [pharmaceutical companies] to get the orphan drug approval with all the government benefits and even some of the subsidies. — 2015
3. •
   (UK, informal) To reduce (something) incrementally (for example, to cut a budget by gradually removing sums of money from it).