hasty writing; scribble; messy handwriting
Often used self-deprecatingly when apologizing for one's own messy handwriting, especially in letters or notes.
Sorry for my messy handwriting.
彼の乱筆はほとんど読めなかった。
His scribble was almost illegible.
poor writing; messy handwriting and composition
Compound of 乱 (disorderly, messy) and 筆 (writing brush, handwriting).