Bum disease 

When you don't wipe your ass good enough and it starts to get itchy and or bother you in some way

"Dude, McDonalds didn't have any toilet paper so I had to wait till I got home and I had a bad case of bum disease"

Bum disease by KKK is Bae June 11, 2016

Bum Disease 

One butt-cheek with an abnormal size and shape. The cause is from petting Giraffe tongues. Another cause is eating pretzel and cherrios at the same time. Side affects of Bum Disease are excrutiating pain. Feeeling an overwhelming attractivness to Mr.Collins. There is only two ways to cure this unfathomable disease, you must look pictures of sexy nerds and Mr. Darcy. from Pride and Prejudice .

Willis didn't go to school because he had Bum Disease.

Bum Disease by Fredwardmoo February 4, 2009

African bum disease 

An urban myth that is said to have begun in south-east Queensland primary schools. Where by declaring oneself a legend to a group of students, they would reply in return, "No, you are an African Bum Disease".

Marty loudly proclaimed to the masses watching his dominance on the netball court, "I am a legend". To which the girls replied, "No, you are an African bum disease".

African bum disease by Zechariah-Jebadiah May 16, 2015

Japanese Bum Disease 

Entirely fictitious rectal complaint now sweeping the playgrounds of the UK's Primary Schools.

Will be known as Japanese Butt Disease in the USA.

Tulisa has Japanese Bum Disease

Simon Cowell has JBD

Japanese Bum Disease by Scally0 January 14, 2013

North Korean Bum Disease 

This is when your bum swells up really badly and can cause huge pain. Its caught from smelling the farts of someone who already has North Korean Bum Disease. Can be treated with around 2 years of bum supplements.

Went to North Korea for a quick fuck, hope I don't catch North Korean Bum Disease.

North Korean Bum Disease by BumDisease101 May 22, 2018