魚蛋頭 [鱼－头]

Jyutping jyu4 daan2 tau4
Pinyin yú dàn tóu

Definitions (粵典–words.hk)
  1. 名詞
    個頭​好似​粒魚​蛋​咁​圓​，​頭​髮​又​短​；​又​可以​借代​噉​樣​嘅​人
    round head with short hair; metonymy of a person with such characteristics ; literally, fishball head