During the winter, students typically bring a sack lunch or leave campus to go to nearby restaurants.

Tell 'em to bring sack lunches, because we may be there for a long time.

Brought a sack lunch, sometimes sat out in her car to eat.

And I'll bet your mother made you a sack lunch.

Restaurants sell sack lunches and the boats provide free coffee.

A group of hands ate sack lunches on the porch.

I took a sack lunch and sat through the whole thing twice for the price of one ticket.

A sack lunch on a commercial airline was a bistro bag.

Oh, Finley did lose his sack lunch and made quite a fuss about that, but it was nothing really.

If this is the case the school provides the student with a sack lunch to be eaten during the students off time.