Definitions

1. noun

a sound, especially a dull metallic or wooden one, made by hitting something, such as a ball or a paddle

“He heard the pong of the ball hitting the metal rim.”

2. verb

to make a dull metallic or wooden sound, especially by hitting something

“The stick will pong loudly when it hits the stone.”

3. verb

to bounce or rebound with a dull metallic or wooden sound

“The ball will pong off the wall.”

4. verb

to be or become flat and hollow, especially as a result of being beaten or crushed

“The once-full bag has ponged out completely.”