From a up master named Gotham Nightmare. Because every video released by up is full of earthy lines, coupled with the abstract imitation of clown makeup and funny tight autumn clothes, it gives people a huge contrast. Because the clown in the movie is Gotham, many netizens shouted "Gotham has a nightmare" after seeing his cos clown.

Therefore, this is also the source of "Gotham nightmare". This stalk is often used to describe embarrassing scenes or embarrassing things.

The real name and life story of the clown is a mystery. He is the most dangerous and terrible criminal in Gotham, and even many villains are afraid of him. Clowns have high IQ but crazy behavior, and their criminal behavior is often unpredictable. Everywhere I go, there is always confusion, disorder and chilling laughter. Clowns like to show the world that life is meaningless by creating pain and death.

Clowns have been Batman's sworn enemies for years. He thinks Batman is his only valuable opponent and takes pleasure in fighting Batman. He gave up the opportunity to murder Batman many times, but devoted himself to all kinds of criminal acts that tortured Batman.

Clown ranks first among TOP 100 comic villains voted by American media all the year round, and ranks first among the greatest comic villains in history selected by IGN.