I think 'proportional representation' might have been what they meant.

I like NZ's MMP (Mixed Member Proportional) system, but there are others that work too. Anything that results in fewer, bigger districts electing multiple representatives should break the power of gerrymandering. And Proportional representation makes 3rd parties viable, which gives you more than a single forced political axis, and just might lift the level political discourse above the current 'My team, right or wrong'