SOUNDthe sound made when a heavy object falls to the ground or hits another heavy object 〔重物落地或相撞发出的〕咚的响声
—clonk verb [intransitiveI, transitiveT]
Examples from the Corpus
clonk• The blades of the Martec propeller are not meshed so they tend to throw open with something of a clonk.• It hit the top of his helmet with a clonk.