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plump for someone or something

to support or promote someone or something. Henry spent a lot of energy plumping for Bill, who was running for vice president. She spent a lot of time plumping for our candidate.
See also: plump

plump something down

1. to drop a heavy load of something. She plumped the load of groceries onto the bench and looked through her purse for the keys. Jill plumped down her packages.
2. to drop something as if it were a heavy load. He plumped the potatoes down on each plate, making a loud noise each time. Dave plumped down a huge slab of meat onto the grill.
See also: down, plump

plump something up

to pat or shake something like a pillow into a fuller shape. Todd plumped his pillow up and finished making the bed. He plumped up his pillow.
See also: plump, up

plump for somebody/something

to support someone or something enthusiastically Marcy had been writing campaign speeches and plumping for McCarthy since December.
See also: plump

plump up

1. To become more plump or chubby: I went off my diet and immediately plumped up.
2. To make something rounded or full in form: We plumped up the dried cherries by soaking them in water. The nurse brought me a pillow and plumped it up before putting it behind my head.
See also: plump, up
References in classic literature ?
He looked at the plump little scarlet-waistcoated bird as if he were both proud and fond of him.
Scrooge's nephew revelled in another laugh, and as it was impossible to keep the infection off; though the plump sister tried hard to do it with aromatic vinegar; his example was unanimously followed.
The way he went after that plump sister in the lace tucker, was an outrage on the credulity of human nature.
Jingle, jingle, went the shillings, as handful after handful was thrown in, till, plump and ponderous as she was, they fairly weighed the young lady from the floor.
Another, of young people, was grouped round the beautiful Princess Helene, Prince Vasili's daughter, and the little Princess Bolkonskaya, very pretty and rosy, though rather too plump for her age.
She went on knitting, but her fingers worked with a decision that was oddly unlike the smooth and contemplative sweep of Lady Otway's plump hand.
My cotton stuffing had sagged a good deal with the day's walking and they've loosened it up until I feel as plump as a sausage.
The water was covered with them, and plump, plump, plump, he dropped his bullets into them.
They present the same rosy complexions and straw-colored mustachios, the same plump cheeks, vacant eyes and low forehead; and they utter, with the same stolid gravity, the same imbecile small talk.
Add to this her short nose, her plump cheeks that set wrinkles at defiance, her white hair dressed in stiff little curls; and, if a doll could grow old, Lady Lydiard, at sixty, would have been the living image of that doll, taking life easily on its journey downwards to the prettiest of tombs, in a burial-ground where the myrtles and roses grew all the year round.
When I was a-crossin' deh street deh chump runned plump inteh me, an' den he turns aroun' an' says, 'Yer insolen' ruffin,' he says, like dat.
He was short and fat, and waddled comically; his eyes were very "slanting," as Rose said; his queue was long, so were his nails; his yellow face was plump and shiny, and he was altogether a highly satisfactory Chinaman.
Matvey, my sister Anna Arkadyevna will be here tomorrow," he said, checking for a minute the sleek, plump hand of the barber, cutting a pink path through his long, curly whiskers.
She is a nice plump young lass, and it is customary with me to adopt that manner of showing that I personally approve of a girl.
He was yet on his way to the White Hart, when two plump gentleman and one thin one entered the yard, and looked round in search of some authorised person of whom they could make a few inquiries.