couch potato
Couch potato (noun) means a person who spends a great deal of time sitting watching television or screens and takes very little exercise. Example: “Three weeks off work and he turned into a complete couch potato.”
How to use couch potato
Learner’s notesIn plain EnglishSomeone who sits watching TV all day instead of moving about.
Informal but entirely mainstream, including in health campaigns and news writing.
The plural is couch potatoes, and the derived noun is 'couch-potato lifestyle' when used before a noun.
Trace the full origin ↓Fill the gap
Can you complete this real example?
Three weeks off work and he turned into a complete _____.
Etymology
Formed from couch and potato; it was coined by Tom Iacino in 1976 as a pun on boob tuber (from boob tube (“television”) and tuber (“potato”)), and was trademarked by Robert Armstrong from 1976 to 1991.