Couch pro

Someone who is experienced in spending large amounts of time on the couch. This person typically spends a lot of time watching TV, movies, Netflix, or YouTube, playing video games, or channel surfing, or some combination thereof. Think "couch potato," but with more purpose and intent.

Guy 1: "I heard Joe binged 6 seasons of The Walking Dead last week."
Guy 2: "Yeah, he's a real couch pro."