school night
n.— «He’s hosted Super Bowl parties for the past four years and says the fact they’re on a school night keeps them from getting out of hand. “They’re pretty big, but they’re not real wild,” Giese says. “Everyone’s gotta get up and go to work the next morning.”» —“Fans plan Super bashes” by Adam Graham Detroit News (Mich.) Jan. 22, 2004. (source: Double-Tongued Dictionary)