supervote

noun, verb — 2 senses

noun

Etymology From super- + vote.

A special vote that has more influence on a decision than an ordinary vote.

If no supervotes are cast, the majority decides. If at least one supervote is cast, then the ordinary votes have no significance.1996, Arto Salomaa, Public-Key Cryptography:
“Sorry, my friend, the Hanoi flu has a supervote that trumps you both. That flu is now in the driver's seat. […]2009, Denise Little, Intelligent Design:

verb

Etymology From super- + vote.

To cast a supervote.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.