"FlatScornfulDodo" is a randomly generated URL string from the site Gfycat (similar to how Twitch clips or Imgur links are named). It became the "canonical" name for this specific high-definition crop of the walking animation. Where to Watch
Search for "Dr. Livesey Walk Full" or "Why Not Phonk Treasure Island." FlatScornfulDodo.mp4
The footage is from the 1982 animated version of Treasure Island produced by Kievnauchfilm . "FlatScornfulDodo" is a randomly generated URL string from
The specific "full piece" you are likely looking for is the (also known as the "Why Not" meme), where the character and his crew walk toward the camera with an exaggerated, rhythmic gait. Origins and Context rhythmic gait. Origins and Context