Simple past tense and past participle of plump.(verb)
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Use "plumped" in a sentence
"Everywhere in the 19th century students of folklore itself a newly invented word plumped up their local legends, sagas and fairy tales just as much as Jacob Grimm and Richard Wagner did in Germany."
"So-called enhanced or "plumped" chicken has between 200 and 400 mgs of sodium per serving, almost as much as a serving of fast-food french fries."
"But roughly one-third of the fresh chicken sold in the U.S. is "plumped" with water, salt and sometimes a seaweed extract called carrageenan that helps it retain the added water."