Definitions

1. verb

to cause a sudden, violent, or uncontrolled motion or movement, especially of a vehicle or a person

“The car jounced over the potholed road.”

2. noun

a sudden, violent, or uncontrolled motion or movement, especially of a vehicle or a person

“The jounce of the bus threw her off balance.”

3. verb (informal)

to dance or move with a lively, energetic, or awkward motion

“The kids jounced around the dance floor.”