Ping-pong (noun)

1. A game played on a table, in which small lightweight balls are hit back and forth across a net by small paddles.
2. Table tennis, a sport in which players hit a small, light ball back and forth across a table using small paddles.

Origin:

Ping-pong is a trademarked name for the sport of table tennis, but it is also commonly used as a general term for the sport.

Examples:

1. He was a champion ping-pong player.
2. Ping-pong is a popular sport in China.
3. The ping-pong tournament was held in the school gym.
4. We played ping-pong after dinner.
5. He was practicing his ping-pong serve.