"flump" in the verb sense

1. flump, flump down

fall heavily

2. plank, flump, plonk, plop, plunk, plump down, plunk down, plump

set (something or oneself) down with or as if with a noise

"He planked the money on the table"

"He planked himself into the sofa"

Source: WordNet® (An amazing lexical database of English)

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