Parody of Pms. A condition where one is sleepy after a meal, normally not a problem at home where you can sleep. However this condition is a danger at school or at work. Under this condition, a person feels tired, not able to think too clearly, and wants to sleep on the spot.
post lunch syndrome
Student comes to class tired, walks over to desk and sits down. Soon after the teachers starts class the student falls asleep.
Student: ZZzzzZZZ *snore*
Teacher: "Wake up!" *hits desk with a yardstick* *Student wakes up startled and abruptly.* "Are you having post lunch syndrome?"