Fusion
The dance that allows people to fuse to one temporarily combining their powers. Goku learned it from the Metamoru in the afterlife, and taught it to Goten and Trunks in DBZ. In movie 12, he quickly teaches Vegeta as well, and in GT, Goku and Vegeta fuse into Gogeta.
Description
First, they have to get their powers to be the same. Then, at a distance apart, they point their arms straight, and away from each other. Striding sideways on their toes towards each other, they must simultaneously move their arms above their heads, to point at each other. Then, they quickly point their arms in the opposite direction again while raising one knee, and they bend side ways making sure their fingers touch. It's hard to describe, so just look at the pics. If that is done correctly, they fuse into a super being. Otherwise, some pathetically weak fat/skinny being appears.
First Used in GT: Episode 60