all-nighter

All nighter refers to an evening where you don't ever go to bed but instead where you stay up until morning. (noun)

A marathon study session that begins on one day and lasts until the morning of the next day is an example of an all nighter.

See all-nighter in Webster's New World College Dictionary

See all-nighter in American Heritage Dictionary 4

Learn more about all-nighter

More from YD