plonk has definitions from the field of food
1
[ noun ] (British and Australian) a cheap wine of inferior quality

Related terms

wine Australia UK

2
[ verb ] set (something or oneself) down with or as if with a noise

Examples

"He planked the money on the table" "He planked himself into the sofa"

Related terms

set_down

3
[ noun ] the noise of something dropping (as into liquid)

Related terms

noise plank

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