Definitions by ph@11u55y

school night 

To have commitments the next day, esp. in the morning, eg interviews, work, dates etc, that prevents you from doing something (usually fun and stupid) on that night.

Originated, (obviously) when having to go to bed early because school was the next day.

I'd love to get drunk and stay out all night with you guys, but it's a school night!

school night by ph@11u55y June 26, 2009