burning the midnight oil - idiom

• burning the midnight oil: ( up late at night working hard ... )

You are "burning the midnight oil" when you are working hard late into the night. 


Example: I have a big exam tomorrow so I'll be burning the midnight oil tonight.

Idiom keywords: to stay up working, studying, late at night, working by the light, oil lamp, late in the night, burning the midnight oil tonight, burn the midnight oil night, burn.

Posted in: idioms