Definition of "ping-pong"
ping-pong
noun
countable and uncountable, plural ping-pongs
verb
third-person singular simple present ping-pongs, present participle ping-ponging, simple past and past participle ping-ponged
countable and uncountable, plural ping-pongs
third-person singular simple present ping-pongs, present participle ping-ponging, simple past and past participle ping-ponged