The phrase "a solid hunk of" is correct and usable in written English.
It can be used to describe a substantial or significant piece of something, often in a physical or metaphorical sense.
Example: "He handed me a solid hunk of chocolate, and I couldn't resist taking a bite."
Alternatives: "a hefty piece of" or "a substantial chunk of".
Staff (natty in low-slung trousers and Converse trainers) are standing around the hazelnut (actually a solid hunk of carved wood) waiting for something to happen.
The locally grown filet, a solid hunk of raw, red meat one moment, is teased apart with seeming ease by the hummingbird-quick dicing and mincing of the chef's hand the next.
But despite this instructive lesson, I still indulge in fantasies of saving my needy patient with a solid hunk of cash, an anonymous check — enough to buy her food and transportation; expert, consistent medical care; a few treats; and a little something in the bank.
However, the moon is too big and too close to Jupiter to be a solid hunk of ice, says planetary scientist John Anderson of NASA's Jet Propulsion Laboratory in Pasadena, California.
Even though experts have managed to make artificial 'cellular' materials like aluminum foam, which is full of air pockets and thus much lighter than a solid hunk of metal, there's a trade-off – the porous metal is much weaker than solid metal would be.
It's then printed into a solid hunk that looks, and is genetically indistinguishable, from the authentic horn.
In a case that terrified doctors at Harvard's Beth Israel Deaconess Medical Center staph solidified both lungs of a previously healthy 28-year-old; in an autopsy they looked like solid hunks of liver.
Maybe a hunk of gold was buried behind it.
Essentially, to paraphrase one of Elvis's greatest hits, ball lightning is just a hunk -- a hunk of burning silicon.
That image of a caveman gnawing on a hunk of bison meat may need a makeover.
One photograph showed the crumpled, bloody body of a miner next to a hunk of rock.
