Tactical voting
Tactical voting is when the electorate itself coordinates vote switching to cause or prevent a certain result. It only works in certain electoral systems.
#TacticalVote (formerly Tactical2017)
Tactical voting against the Tories.
Tactical.Vote
Tactical Remain voting in the UK European elections 2019
Swap my Vote
Platform that allows voting partners to make their votes count in a different constituency, where each voter’s first preference has a better chance of winning a seat