A partial or total loss of memory, resulting from intoxication or altered state achieved while partying in the garage or a garage-like environment. Shock, psychological disturbance, brain injury, or praying at the porcelain alter may follow.
WTF, I don't remember a garage, a cake, turning 37, blah, blah, blah! No seriously guys...I think I'm suffering garagenesia.
Man, that was an awesome party in the garage last night; did anyone get donkey punched? I don't remember what happened, I'm suffering some serious Garagenesia...