veg out
Intermediate (B1)informal
Do absolutely nothing and just sit around relaxing like a vegetable.
"After a long week at work, I just want to veg out on the sofa this weekend."
Hear it in context

Tobey Maguire on What New Dads Should Know
TheEllenShow · 2:58
But yeah, I like to kind of veg out and watch TV.

Tobey Maguire | Full Episode
TheEllenShow · 21:04
But yeah, I like to kind of veg out and watch TV.

Your phone addiction is keeping you from achieving flow state | Arthur Brooks
Big Think Clips · 9:06
But, you know, there are times when I just want to veg out.