Simple past tense and past participle of plonk.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "plonked" in a sentence
"The other issue that Anna hasn't thought about is that although these appliances can be installed by semi-skilled workers, "plonked" as its called - they have to be actually commissioned by tradespeople."
"Once I hit the Apple Store (memo to the Gold Coast City Council: you really need to build some footpaths in Robina pronto), I plonked myself in front of a MacBook and spent 45 minutes or so playing around with the different keyboard options."
"And he plonked his considerable girth in between me and the lecherous customer for the rest of the visit."