BOGO — Buy One Get One Free: 56 Stores Compared

No — "BOGO 50% off" is just as common as "BOGO free," and both get labeled BOGO, so check the specific offer's terms before assuming a 100% discount on item two.

Not usually identical, but it typically has to be the same product category and equal or lower price than the item you paid for.

Most stores treat the pair as a single discounted transaction — returning one item usually cancels or reduces the discount applied to the other.