Definitions for "Gerrymander"
To divide (a State) into districts for the choice of representatives, in an unnatural and unfair way, with a view to give a political party an advantage over its opponent.
To divide a state, county, or other political subdivision into election districts in an unnatural manner to give a political party or ethnic group advantage over its opponents.
The manipulation of electoral boundaries unfairly to give an unfair advantage to one party in elections.