馬甲線 [马－线]

Jyutping maa5 gaap3 sin3
Pinyin mǎ jiǎ xiàn

Definitions (Wiktionary)
  1. noun, neologism
    groove formed between the muscles rectus abdominis and external oblique in people with firm abs (abdominal muscles)
Examples (Wiktionary)
  1. Mandarin
    运动会使整个人精神起来！正在冲向马甲线宝宝们的行列中！fighting！
    運動會使整個人精神起來！正在衝向馬甲線寶寶們的行列中！fighting！
    yùn dòng huì shǐ zhěng gè rén jīng shén qǐ lái ！ zhèng zài chōng xiàng mǎ jiǎ xiàn bǎo bao men de háng liè zhōng ！ Ｆｉｇｈｔｉｎｇ ！
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