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1. (intr) to make a loud dull thud
2. (tr) informal to hit
a loud thudding sound
[C20: of imitative origin]
n., v. clonked, clonk•ing. n.
1. a low, dull sound of impact, as of a heavy object striking against another.v.i., v.t.
2. to make or cause to make such a sound.
Past participle: clonked