Goku and Vegeta were fighting you, unfurtunely for them, you were winning pretty easy even when they were on SSJ4, They manage to evade you and when you find them, you see they are on specific and strange positions at both sides

Vegeta: What a waste of time..

Goku: This feels special. He smirks

both put their arms on opposite sides

V&G: ¡Fu..!

They start walking towards eachother with a strange dance, moving their arms to their directions

V&G: ¡...Sion!

They lift one leg and clenches their fists, putting their arms on opposite sides again

V&G: ¡HA!

They finally join their fingers, with a final position at a 90° angle and with their feet far from each other

Then a strong sudden light appears both fighters being consumed by this light and getting joined into one..

suddenly, a new fighter appears floating from above and the light dissapears, he lands on his feet and smirks its.. Gogeta, on his Super Saiyan 4 Form.

Gogeta: I am not Goku, nor Vegeta... im the guy who's gonna stop you, ¡Gogeta!