Debra (a.k.a. Mama Georg) is Stephen's mother, and the wife of Steve; she is a regular on the Vlog always doing things with her family (mostly going to dinner or playing games). She is a pescatarian and an amazing cook according to Stephen.
Debra used to eat meat, but gave it up since she didn't like the thought of eating a dead animal, yet she continued to make food containing meat for Steve. When she got pregnant with Stephen, she read that it was good for the baby to eat fish, and she has since then been eating seafood.