Fatboygetdown (real name John) is a YouTuber who appeared is a few of Angry Grandpa's videos in 2011. He is best known for him uploading videos to YouTube of himself dancing to popular pop songs. He has states that he weights almost 800 lbs.
Angry Granpa Watches Fatboygetdown (YouTube videos)
Angry Grandpa vs. Fatboygetdown (Voice only)