Definition of "gerrymander"

(transitive, derogatory) To divide a geographic area into voting districts in such a way as to give an unfair advantage to one party in an election.  examples

(transitive, derogatory, by extension) To draw dividing lines for other types of districts in an unintuitive way to favor a particular group or for other perceived gain.  examples

(derogatory) The act of gerrymandering.  examples

(derogatory) A voting district skewed by gerrymandering.  examples