What is Hat Night?
1.
A night to be determined by the drunkest friend where all participants wear a hat and drink with utter disregard for one's health and all social norms. Property destruction, loss of friendships/dignity, and incarceration may ensue.
It was hat night last night, and shit got soo real that I woke up naked in another fraternity's parking lot with a head wound and an inflatable sex doll.
See
