Meaning of all-nighter | Babel Free

Definitions

1. Something that lasts throughout the whole night.
2. An instance of studying or working throughout the night without sleep.
   specifically
3. A session with a prostitute covering the entire night.
   UK, slang
4. A client of a prostitute who has paid for the entire night.
   UK, slang
5. A criminal or other person kept in jail over night.
   US, slang

Examples

“That party was an all-nighter.”

CEFR level