金かな釘くぎ流りゅう

noun

scrawl; stiff, angular handwriting

Refers to handwriting that is stiff, angular, and hard to read, likened to bent nails. Often used self-deprecatingly or to criticize poor penmanship.

• 彼かれの字じはまるで金かな釘くぎ流りゅうだ。

  His handwriting is just like a scrawl.

• 金かな釘くぎ流りゅうで書かかれたメモを解かい読どくするのに苦く労ろうした。

  I struggled to decipher the note written in that stiff, angular handwriting.