Writing done hastily and roughly; a scribble or scrawl that is hard to read.
メモが殴り書きで読めなかったので、確認の電話をかけた。
The memo was a scrawl and unreadable, so I called to confirm.
急いで殴り書きしたので、漢字が間違っているかもしれない。
I wrote it hastily, so some kanji might be wrong.
壁に殴り書きで名前を書くのはやめなさいと先生が言った。
The teacher told us to stop scribbling our names on the wall.