"plonk" in the noun sense
1. plonk
a cheap wine of inferior quality
2. plonk
the noise of something dropping (as into liquid)
"plonk" in the verb sense
1. 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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