砰 + 地 / 砰 + 的一声 + Verb
The onomatopoeia 砰 (pēng) imitates a loud, sudden sound such as a bang, slam, or crash. It is used as an adverb before a verb to vividly describe the manner in which something happens, often paired with 地 or 的一声 for emphasis.
门砰的一声关上了,把我吓了一跳。
Mén pēng de yì shēng guān shàng le, bǎ wǒ xià le yí tiào.
The door slammed shut with a bang, giving me a fright.
楼上砰砰砰地响,不知道在干什么。
Lóu shàng pēng pēng pēng de xiǎng, bù zhīdào zài gàn shénme.
There's a banging sound coming from upstairs — no idea what's going on.
他把书砰地摔在桌子上,转身就走了。
Tā bǎ shū pēng de shuāi zài zhuōzi shàng, zhuǎnshēn jiù zǒu le.
He slammed the book down on the table and turned around and left.