The phrase "a couple of flat" is not correct in English as it is incomplete and lacks context.
It could potentially be used in a context where you are referring to a couple of flat objects or items, but it needs additional information to be clear.
Example: "I bought a couple of flat boxes to store my old clothes."
Alternatives: "a couple of level" or "a couple of flat items".
"We've only had a couple of flat tires," he said.
The lung operations were a mechanical problem, in a sense like fixing a couple of flat tires.
"We do have a rainbow rail and a couple of flat boxes, but it's not a wild and crazy scene," said Ed Beckley, the general manager.
Photograph: Luk Benies/AFP/Getty Images 12.47pm BST Stage seven: Marina Di San Salvo to Pescara (177km) After a couple of flat seaside jaunts, the peloton head inland.
The Virtual Simulation room was so minimally appointed — a couple of flat screens and a few headsets with electrodes lay about — that it looked as if it had been burglarized.
But, while she hit a couple of flat notes, her real strength lies in her ability to belt, and her last clear, sweet notes helped elevate the song to another level.
Apart from a couple of flat-out spectacular tries that you should check out at your earliest convenience, it wasn't much of a spectacle on Friday night.
A zinc bar, a couple of flat-screen TVs tuned to ESPN, a plate of penne alla vodka — any of these things lets you know at a glance what kind of experience your hosts want you to have.
Omar paid his own fare to Istanbul, using cash he had collected as rent from tenants in a couple of flats owned by his father.
Nobody is likely to change the way he votes because once upon a time there was a row between a parliamentary office-holder named Black Rod and Downing Street or because Mrs Blair used a dodgy go-between to buy, perfectly legally, a couple of flats in Bristol.Which doesn't mean that the papers' blood-lust is free from consequences.
