廢票 [废－]

Jyutping fai3 piu3
Pinyin fèi piào

Definitions (粵典–words.hk)
  1. 名詞
    唔​符合要求​而​被​認定​為​無​效​嘅​選​票​（​量​詞​：​張​）
    invalidated ballot or ticket; spoilt ballot paper; void ballot paper
Definitions (Wiktionary)
  1. noun
    spoilt vote; invalid ballot paper