سلام زبان

couch potato 

 کدو تنبل

couch potato   کدو تنبل 
 
Definition:     One who sits in front of the television for long periods of time,

 with little or no physical activity.

یک نفر که مدام جلوی تلویزیون میشینه و هیچ کار دیگه ای نمی کنه

Example:   

1) My roommate is such a couch potato -- last weekend he watched
television for 14 hours straight!

2) My husband is a couch potato. He sits in front of the TV all day long.

3) You have a huge belly because you’re a couch potato.

تو یه شکم گنده داری برای اینکه همش مثل کدو تنبل جلوی تلویزیون نشستی

4) I should be more active and less of a couch potato.


Etymology: ریشه
 A 'potato' is a vegetable that just sits there, doing nothing.

Synonyms:     sofa slug

 
A short dialog with couch potato 

A: "James. We’re going to play basketball. Do you want to play?"
B: "No, I’m going to watch TV today."
A: "You did that all day yesterday. You better stop being a couch potato or you’re going to get a big fat belly."


Other Common Sentences
"Good luck trying to get his attention. He’s glued to the television."