The phrase "whole heck" is used to emphasize something a lot or intensify the situation. It shows that something is big, important, or extreme. Full definition
We've covered one whole heck of a lot of rumors about this device, including insider tips and photos of the machine in several forms. (slashgear.com)
In the past three years not one whole heck of a lot has changed. (slashgear.com)
The newest additions come in the form of Custom Device Actions, and they're about to add one whole heck of a lot of variety to their connected device ecosystem. (slashgear.com)