The desease that you catch when you get so baked that anything that is written out(letters,numbers,words) appear written backwards.
Keegs- Dude I was driving home on the highway last night after that mango kush. I could've swore I was going 06 miles per hour! I had a serious case of Backwards-Itis Brah!
Thurgood- Ah, you crazy man, you crazy!