From Longman Dictionary of Contemporary Englishvote with your feetvote with your feetAGAINST/OPPOSEto show that you do not support a decision or action by leaving a place or organization → vote
Examples from the Corpus
vote with your feet• Perhaps it is not surprising that many younger doctors are voting with their feet.• Women are voting with their feet and leaving the party in large numbers.• The Derbyshire Times noted that defiant parents were voting with their feet by keeping children away from school.• If not, they will vote with their feet when they are old enough to do so. 