Definition of bounces:
(v) :
(intransitive) To change the direction of motion after hitting an obstacle.
(v) :
(intransitive) To move quickly up and then down (or vice versa), once or repeatedly.
(v) :
(transitive) To cause to move quickly up and down, or back and forth, once or repeatedly.
(v) :
(transitive, colloquial) To suggest or introduce (an idea, etc.) to (off or by) someone, in order to gain feedback.
(v) :
(intransitive) To leap or spring suddenly or unceremoniously; to bound.
(v) :
To move rapidly (between).