Put a little spring in your step.
Boing! dance is a Epic Fortnite Emote. This emote is one of the Battle Pass cosmetics in Chapter 2 Season 1. It was available once you have reached Tier 86.
The gesture Boing! belongs to Chapter 2 Season 1. Thia gesture was available as a reward by unlocking Level 86 of Battle Pass from Chapter 2 Season 1.