This phrase is especially useful for students staying up late to study for an exam.

Words

밤샘 - to burn the midnight oil. , to stay up all night doing an activity ( slang )

Phrases

밤을 새우다 - to stay up all night

밤을 새웠다 - I/he/she/they stayed up all night

밤을 새우면서 .. - while staying up all night ( Informal casual )