(transitive) To set or toss (something) down carelessly.
We sat alfresco on the edge of a “square,” in reality a pond of cobbly mud with a plinth plonked in its navel […] 2004, David Mitchell, Cloud Atlas, London: Sceptre (Hodder and Stoughton), →ISBN:
When you’ve finished with the sponge, just plonk it back in the sink.
Catrin: You just plonk a white coat on – and you think that’s enough? ¶ For Halloween? ¶ In the Big End? ¶ You fuckin’ disgust me… 2010, Gary Owen, Love Steals Us from Loneliness, London: Bloomsbury Publishing, →DOI, →ISBN, page 16:
(reflexive) To sit down heavily and without ceremony.
Changing trains at Hereford, I catch the West Midlands Class 170 that is waiting for me at Platform 1. Plonking myself in a table bay, I settle in to enjoy the trip on what is another quiet train - well, until Ledbury, where a couple of dozen people are waiting. 2020 December 2, Paul Bigland, “My weirdest and wackiest Rover yet”, in Rail, page 67:
Using a tractor fan, shock absorbers, PVC pipes, a bicycle frame and anything else he could lay his hands on, he then built a rudimentary wooden tower, plonked his home-made generator on the top, and eventually got one, and then four bulbs to light up. 2009 October 2, John Vidal, “'Tilting at windmills: the boy who harnessed the wind'”, in The Guardian, →ISSN:
(Internet, transitive) To automatically ignore or block a particular poster.
I got tired of his trolling and ad hominem attacks, so I plonked him.
cs sednout si (To sit down heavily and without ceremony) · de hinwerfen (To set or toss carelessly) · ru плю́хаться (To sit down heavily and without ceremony) · cs mrsknout (To set or toss carelessly) · de hinschmeißen (To set or toss carelessly) · ru плю́хнуть (To set or toss carelessly) · cs kecnout si (To sit down heavily and without ceremony) · ru плю́хать (To set or toss carelessly) · cs pohodit (To set or toss carelessly) · de hinfläzen (To sit down heavily and without ceremony) · ru плю́хнуться (To sit down heavily and without ceremony)
From WWI military slang, derived by alteration of French vin blanc (“white wine”) by the law of Hobson-Jobson. Recorded earliest in the playful rhyming slang form plinketty-plonk. Possibly influenced by the sound of wine being poured into a glass.
Meanings
(Commonwealth, Ireland, UK, informal, uncountable) Cheap or inferior everyday wine.
2011, Charles Spence, Maya U. Shankar, Heston Blumenthal, Chapter 11: ‘Sound Bites’: Auditory Contributions to the Perceeption and Consumption of Food and Drink, Francesca Bacci, David Melcher (editors), Art and the Senses, page 229,
Given the results reported in this chapter, one obvious solution to the ‘plonk paradox’ (why cheap wine tastes good on holiday but terrible at home) would be to try and recapture some of these sensory impressions in one′s own living room, in order to enhance the flavour/pleasantness of the wine-drinking experience (and turn that horrible tasting wine into something that tastes really rather nice), and to elucidate the respective contributions of contextual effects on hedonic ratings.
Diesel took a large swallow out of the glass of red wine. He spluttered, choked, and spilled wine down one leg of his fawn colored pants. “My God,” he gasped, when he could speak. “What is that crap?”
“Why cheap red wine,” Ford displayed the label. “You know. Plonk.” 2003, Joan del Monte, Plonk Goes the Weasel, page 201:
The third category of wines is highly unattractive as these may only be sold as generic wines (white, red or rosé), without reference to any geographical location. Only surplus plonk and cooking wine would aspire to fall in this segment, which can be blended with any other wine - to any extent. 1998, Pierre Spahni, Swiss Wine Market Report, page 95: