The phrase "heavy lift" refers to a challenging or difficult task that requires a lot of effort or strength to complete. It suggests that the task is not easy and may require extra resources or abilities to accomplish successfully.
Sentences with «heavy lift»
I realize I may not be realizing the full gains of doing heavy lifting or interval training by only doing it once a week. (jasonshen.com)
That seems like a lot of heavy lifting for employees. (coffeehabitat.com)
Have to use eye drops for a few weeks and, because I have a lot of heavy lifting for a job, taking 3 weeks off from work. (sbnation.com)