ping-pong I. \ˈ ̷ ̷ ¦ ̷ ̷ \verb (-ed/-ing/-s) Etymology: from Ping-Pong, trademark for table tennis : shift : bounce < the issue was ping-ponged back and forth > II. noun Usage: sometimes capitalized both Ps : something resembling a game of table tennis ; especially : a series of usually verbal exchanges between two parties < a ping-pong of absurdist dialogue — Lawrence O'Toole >