ping-ponging
/ˈpɪŋpɒŋɪŋ/(US Ping-Ponging)
noun
1The action of playing ping-pong. Later also figurative : the action of moving back and forth rapidly, especially between two alternatives.
2 North American. The practice of passing a patient to a succession of doctors for superfluous examinations in order to maximize fees.
Origin
Early 20th century; earliest use found in Morning Leader. From ping-pong + -ing.