Someone who is retarded and can't play a mage and his father is a clown and people say honk around him all the time.
by Dinkie, Binkie, Nabiel June 02, 2008

An affliction which causes a speech-related abnormality only when saying the word "unfortunately." Whereas a normal person would say "un-for-chun-it-lee," a person in the later stages of mad clown disease will say "un-for-toon-ut-lee," much like a homosexual penguin. It's passed from person to person (or penguin) through Paris Hilton. Mad clown disease was first discovered by Dr. Al K. Seltzer in Pietermaritzburg, South Africa. You know, "South" Africa? Vast strides have been made in the fight against mad clown disease. As of yet, no cure is forthcoming, and the disease is viciously contagious. Currently, the method we are using to study the disease is spending time in the Paris Hilton (not the hotel). What? It's research!
Oh no, another outbreak of mad clown disease! Euthanize all penguins and Hilton sisters! Stay away from their orifices!
by Guoderaj March 18, 2008

a 3 piece Punk Band Trashing Songs , and having a fucking excellent time doing it...people leaving the show are often affected by mad clown disease, which induces the inner Clown within to explode, bring undetermined concequences
by rev_neil October 12, 2007

A "mental illness" in which the afflicted avidly and blindly loves the "evil clown" character depicted in horror movies, haunted attractions, video games, and Halloween, even encouraging others to love it too, despite the negative impact on the world the "evil clown" character has. The afflicted will express defiance when asked to change their ways, believing nothing is wrong with them. The term comes from a term The Joker uses in Batman: Arkham Knight.
Mad Clown Disease reached one of its highest points when Stephen King's "It" hit the big screen in the 20'teens, when everybody started to go wild over Pennywise the Dancing Clown, despite the negative impact he has on the world. The syndrome spread like cancer and still does today.
by Info2go August 28, 2025
