off-center load
nounUK /ˌɒf ˈsɛntə ləʊd/
US /ˌɔf ˈsɛntər loʊd/
A load that is not balanced in the middle, so it pulls more to one side.
The truck tipped over because it was carrying an off-center load.
OTHER MEANINGS
2. A weight placed away from the middle of something, making it lean.
The washing machine shook because of an off-center load of clothes.
3. A burden or responsibility that is not shared fairly among people.
She felt the off-center load of chores at home.
4. In engineering, a force applied away from an object's central axis.
The bridge was designed to handle an off-center load from heavy trucks.