Have square eyes British old-fashioned humorous
To spend the excessive amount of time on watching television
Hey girl, you will have spare eyes if you keep watching TV. Go to the grocery store and buy me some stuff.
To observe one's activity
To watch someone or something very closely and carefully
To pay close attention to someone or something.
To be under close examination.
If you "can't take your eyes off someone or something", you can't stop looking at them.
The verb “have" should be conjugated according to its tense.
The earliest occurrence of the phrase "square eyes" that was found is from the column TV And Radio, by Kendall McDonald, published in the Liverpool Echo (Liverpool, Lancashire, England) of Monday 7th March 1955