Bobble
Bobble verb - To make short up-and-down movements.
Usage example: the little doll's head bobbled when you poked it
Pump
Pump verb - To make short up-and-down movements.
Usage example: the thighs of the bicyclists were pumping furiously as they neared the finish line
Cite this Source
Pump and Bobble. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/bobble/pump
Bobble & Pump. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/bobble/pump>.
Pump or Bobble. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/bobble/pump.
Google Ngram Viewer shows how "bobble" and "pump" have occurred on timeline