Decalcomania is a decorative technique by which engravings and prints may be transferred to pottery or other materials. Today, the shortened version is "decal".

What does Decalcomania mean BTS?

A fan explained the meaning behind the title saying: “Decalcomania means two people who look alike. He wants to be on the screen so people will like him better & he's afraid that if he shows his true self that people will leave.”

What does Decalcomania mean in Korean?

Decalcomania (noun): the art or process of transferring pictures and designs from specially prepared paper (as to glass)