二に徹てつ

noun, noun or participle which takes 'suru'

staying up all night two nights in a row; double all-nighter

Slang term used among students or young people; often implies studying, gaming, or working through two consecutive nights.

• 試し験けん前まえに二に徹てつしてしまった。

  I ended up pulling two all-nighters in a row before the exam.

• 二に徹てつは体からだに悪わるいからやめたほうがいいよ。

  Double all-nighters are bad for your health, so you should stop doing them.