Heavy Lifting Meaning
(idiomatic) The most demanding part of an endeavour; work requiring the most effort, resources, or consideration.
Example: 2000 June 5, Cache as cache can (continued under the title WorkFire), InfoWorld, Volume 22, Issue 23, page 60F:
That's what I call the heavy-lifting part of the problem, and that's really where the term genetic caching comes into play.
2003 March 18, John Howard, speech to the Australian Parliament:
Alliances are two-way processes and, where we are in agreement, we should not leave it to the United States to do all of the heavy lifting just because they are the worldâ€™s superpower.
2010, The 9 Month Investment: A Passive Investors Guide to Achieving 10 Years Worth of Wealth Accumulation in Only 9 Months, page 23:
We want our experts to spend their time on this and do the heavy lifting for us.