味み噌そっ歯ぱ

noun

decayed baby tooth; carious milk tooth

Refers specifically to a decayed or cavity-ridden baby tooth, often with a soft, crumbly texture likened to miso paste. Used in informal, often child-related contexts.

• 子こ供どもの味み噌そっ歯ぱを早はやめに治ち療りょうしたほうがいい。

  It's better to treat a child's decayed baby tooth early.

• 甘あまいものばかり食たべていると味み噌そっ歯ぱになりやすい。

  If you eat only sweets, you're likely to get decayed baby teeth.