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burn the midnight oil

to work late into the night

In Idioms & Sayings

In more detail

(idiom) to work very hard, especially late into the night or for a long time on something difficult

Examples

• She's been burning the midnight oil to finish her thesis before the deadline.

Nearby in Idioms & Sayings

spill the beans, hit the nail on the head, let the cat out of the bag, the ball is in your court, pull someone's leg, get cold feet