The clip is credited to Tim, performing under the name DimitriV2, and is built entirely around the single shouted phrase get back here. Short user uploaded voice lines like this spread on soundboards because they are easy to recognise, download and reuse without context. The phrase itself is a common chase command in games, cartoons and everyday speech, which helps it fit many different scenes. Its popularity online comes from that flexibility, pairing a serious tone with visuals that are usually silly or exaggerated.