The phrase "giant freezer" refers to a very big and cold storage space used to keep things, like food or other items, frozen or chilled for a long time. Full definition
The Southwest Fisheries Science Center houses one of the largest collections of tissue and DNA samples from marine mammals and sea turtles in the world, all preserved in giant freezers. (sciencedaily.com)
For those of us who want to help but don't have giant freezers of breast milk or a contact in Texas waiting to receive it, he Houston Food Bank and the Corpus Christi Food Bank are both accepting donations. (mommyish.com)
An employee of another store said the seafood department, which once had a giant freezer to store extra inventory, was now sharing one with the meat department. (businessinsider.com)