Fail a class, course, or an entire school. Basically, you need to put a lot more effort in.
They kicked me out. I wasn't supposed to come back after Christmas vacation on account of I was flunking four subjects and not applying myself and all.
A day at Knox College when all classes are canceled and students get drunk and play in a mud pit. It's a surprise and you don't know until 6 am the day of Flunk Day! There are fryers who wake everyone up with pots and pans. There are also flunk day scares...which are just mean.