couch potato
noun/ˈkaʊtʃ pəteɪtəʊ/
/ˈkaʊtʃ pəteɪtəʊ/
(informal, disapproving)- a person who spends a lot of time sitting and watching television
- He's turned into a real couch potato since he subscribed to the sports channel.
Check pronunciation:
couch potato