Pyotr? Is this some specific song? gif

PeterExplainsTheJoke (/r/PeterExplainsTheJoke): Hey gamers, this is the subreddit where you post a meme/joke you don't understand so it can be explained to you. You can also post memes about u/PeterExplainsTheJoke or just post weird pictures of Peter.

/r/Memes the original since 2008 (/r/memes): Memes! A way of describing cultural information being shared. An element of a culture or system of behavior that may be considered to be passed from one individual to another by nongenetic means, especially imitation.