齒杯 [齿－]

Jyutping ci2 bui1
Pinyin chǐ bēi

Definitions (Wiktionary)
  1. noun, Hokkien
    tumbler or mug for mouth-rinsing or tooth-cleaning; tooth glass or mug
    (syn.) 水口杯, 齒管, 齒觳, 齿觳仔, 齿管, 𠺘口盅, 漱口杯, 齒觳仔, 齿觳, 牙缸