Kirby Dance

The Kirby Dance is a term that is used to describe the short dance Kirby does in most of his games usually after accomplishing a certain action (like beating a boss or a level), though the dance itself differs depending on the game, and sometimes there are multiple variations in the same game. Kirby is sometimes joined by two or more other Kirbies (or helpers/animal friends) who mirror or accompany him in his dance.

Anime
The Kirby Dance appears in episode 42 of Kirby: Right Back at Ya!; Pink-Collar Blues (which is episode 47, Come Home', Dear Waddle Dee, in the Japanese version) where Kirby witnesses King Dedede's Waddle Dee doing the dance, and then finishes the episode by doing it himself.

The music used for the dance was changed in the English dub however.

In Super Smash Bros. Series
Three variations of the Kirby Dance are used in the Super Smash Bros. games as Kirby's victory pose after winning a match. In Super Smash Bros. Brawl Kirby's Up Taunt is also inspired by the Kirby Dance.