The phrase "huge waste" means that a significant amount of something has been used or spent in a careless or unnecessary manner, resulting in an unnecessary loss or inefficiency. Full definition
In addition to the underground fires, there are also 93 known surface coal fires, some of them in huge waste piles created during the process of coal mining. (discovermagazine.com)
Huge waste of time for you, looking up everyone and typing in all those addresses. (rmfw.org)