Definitions

1. noun

a vehicle, especially a bicycle or a horse-drawn vehicle, with poor suspension or unsprung weight, causing a rough ride, or a person or thing that causes a great deal of trouble or distress

“The old boneshaker of a bicycle shook its riders to pieces on the bumpy road.”

2. adjective

causing great physical discomfort or mental distress

“After a long day of work, she was exhausted and felt like a boneshaker.”