rectangle time 

The time of day when people in an obviously social setting instead choose to pull out their smart phones and have some time alone with their "rectangle". The term can also apply to other electronics, such as computers, iPads, etc.

"Having some rectangle time there, I see" she said to Luke, as he stared at the phone screen while sitting on a scenic beach.

rectangle time by Thefamilyjules August 22, 2017