heavylifting
nounUK /ˌheviˈlɪftɪŋ/
US /ˌheviˈlɪftɪŋ/
The hard work that takes the most effort.
My big brother did the heavylifting when we moved the sofa.
OTHER MEANINGS
2. Lifting very heavy things, like weights or boxes.
Heavylifting at the gym made his arms strong.
3. The most important part of a job that others depend on.
She did the heavylifting on the school project.
4. Doing the tough chores so others have it easier.
Dad did the heavylifting in the garden while we played.