The phrase "cushion up" is correct and usable in written English.
It is typically used in informal language and often in a figurative sense. Example: "He cushioned up his bank account by investing in stocks." This sentence means that the person increased their bank account balance by investing in stocks, providing a figurative image of the person's bank account being padded or cushioned up. Another example: "She cushioned up her schedule by delegating some tasks to her team." This sentence means that the person lightened or eased their schedule by giving some of their tasks to their team, with the figurative image of their schedule being cushioned or softened.
Use some pillows to cushion up your seat in the car, and if you're a little cold, you could turn the heat up, or cozy up in a light fleece blanket.
(Where would she put it?) Sue did appear pregnant, years later, but this turned out to be a practical joke involving a cushion up her dress.
But still the image of Mel Smith with a cushion up his front and a pint in his hand refuses to fade.
Insulating your pipes is one way to cut this waste and, similarly, if you've got an open chimney that you don't use, stick an old cushion up it.
To make room on the market for Nigeria's high-quality crude, other OPEC nations would likely cut back, pushing the cushion up to 5 million bpd.
Within the OFT, control NCCs at E10.5 migrated as two distinct columns within the subendocardial cushion up to the conotruncal junction [ 40].
"We nearly died," he says, showing off caskets that range from $275 for a cloth-covered plywood box that uses shredded newspaper as cushioning, up to a $4,500 mahogany casket that he claims sells for twice as much in a funeral home.
According to Jan Randolph, an economist with Global Insight, the Gulf countries have a significant protective cash cushion, built up during the good years as budget surpluses piled up.
He was halfway down the row; now the fellow with the cushion looked up and then back down right away.
It also provides more detail about last week's announcement that banks may be required to hold a special capital cushion of up to £10bn to guard against any economic downturn through what are known as counter cyclical capital buffers.
The Bank's latest warning to landlords came in a list of risks to the financial system, as Threadneedle Street put banks on notice thatthey could be forced to hold a special capital cushion of up to £10bn to guard against any economic downturn.
