also: カウチ・ポテト
noun
couch potato; TV addict
A person who spends a lot of time sitting on the couch watching television, often with a lazy connotation. Used as a casual, slightly humorous label.
休日は一日中カウチポテトになってしまう。
On my days off, I end up being a couch potato all day.
彼は完全なカウチポテトで、週末はテレビの前
He's a total couch potato; he doesn't move from in front of the TV on weekends.