Where Does the Bounce Come From?

Rubber dubber
flouncer bouncer
up the wall
and in and outer
under over
bouncing backer
mustn’t dropper
mustn’t stopper
in-betweener
do a clapper
in-betweener
do a spinner
faster faster
to and fro-er
rubber dubber
flouncer bouncer

BUT

then oh bother!
Butter finger
dropped the ball
and pitter patter
patter pitter
rubber ball
ran right away.