The DBZ Fusion meme is based on the 'Fusion Dance' technique introduced in the Dragon Ball Z series, specifically during the Buu Saga. It involves two characters performing a synchronized dance to merge into a single, more powerful entity like Gotenks or Gogeta. In internet culture, the template typically uses three panels: the two individuals performing the dance and the final result of their combination. It is widely used to humorously show what happens when two distinct personalities, brands, or objects are mashed together, often leading to absurd and hilarious outcomes.