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Jyutping sei3 ngaan5 tin4 gai1
Pinyin sì yǎn tián jī

Definitions (CC-CEDICT)
  1. four-eyes (facetious term for a person who wears glasses)
Definitions (Wiktionary)
  1. noun, colloquial, figuratively
    bespectacled person; someone who wears glasses, especially a young person; four-eyes
    (syn.) 四眼狗 pejorative, 四眼佬, 四眼田雞, 四眼妹 girl, 四眼兒狗, 四眼兒, 四眼婆 woman, 四眼龜 pejorative, 四眼佬 man, 架樑, 四眼兒狗 pejorative, 四隻眼 pejorative, 四眼仔 boy
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    你跟他比可差远了,四眼田鸡。
    你跟他比可差遠了,四眼田雞。
    nǐ gēn tā bǐ kě chà yuǎn le , sì yǎn tián jī 。
    • You just got pantsed in the schoolyard, four-eyes.