乒乓 (pīng pāng) — (onomatopoeia) sound of objects knocking or bouncing, e.g. pinging and panging

Definition

Examples

• 外面传来乒乓一声，像是什么东西掉地上了。
  Wài miàn chuán lái pīng pāng yī shēng, xiàng shì shén me dōng xī diào dì shàng le.
  A banging noise came from outside, like something had fallen to the floor.
• 厨房里乒乒乓乓响个不停，她在做饭。
  Chú fáng lǐ pīng pīng pāng pāng xiǎng gè bù tíng, tā zài zuò fàn.
  The kitchen was clattering nonstop — she was cooking.
• 他用力敲了两下门，发出乒乓的响声。
  Tā yòng lì qiāo le liǎng xià mén, fā chū pīng pāng de xiǎng shēng.
  He banged on the door twice, making a loud knocking sound.

Origin