box top
noun
the top of a box; the upper portion of a boxed product, which may contain the expiration date, product identification, proof of purchase, or special voucher.
Origin of box top
1935–40
Words nearby box top
box step,
box stoop,
box store,
box stretcher,
box the compass,
box top,
box turtle,
box wrench,
box-fresh,
box-office,
box-ticking