Antimatter and Gravitational Repulsion

If a positron had negative inertial mass what would that mean? It would mean that if you push on it in one direction it would accelerate the other direction right. Negative gravitational mass would be different it would allow for gravitational repulsion gravity attracts things that both have positive mass but if two particles one with positive gravitational mass and one with negative gravitational mass meet they might repel each other which would be really interesting because that's not something we've ever seen gravitational repulsion. But I guess the main picture we're trying to paint is that you know like if an electron has a negative charge and a negative electric charge and it weighs 0.00000000 something kilograms does an anti-electron not just