The phrase "a gross display of" is correct and usable in written English.
It can be used to describe an excessive or offensive exhibition of something, often in a negative context.
Example: "The event turned into a gross display of wealth, with attendees flaunting their extravagant lifestyles."
Alternatives: "an outrageous exhibition of" or "a blatant show of".
Why, except as a gross display of inherited wealth, do they need them?
Police at UC Davis maced a group of peaceful Occupy protesters in a gross display of excessive force Friday.
The Western world, however, continually illustrates Jesus as a white man, which is a gross display of ignorance or another scheme at hegemonic imposition of its racial superiority.
It was pretty pathetic really: Ozzy desperate attempt to get a reaction from a bunch of losers like us, and us laughing at such a gross display of drug-induced insanity.
Hemingway would, I expect, be horrified by this gross display of the draft work he put into achieving the novel's famously lean, clean, cold finish.
We all live on a spectrum between children born in a war zone and people who get Instagram famous because of their gross displays of wealth, but thinking about it too much makes existence unbearable, and ultimately leads to a shattering sense of a life unfulfilled.
I love gross displays of brute force as much as the next American, so I can see why the Miata is one of the most misunderstood cars on the market.
Is that the result of a phenomenal bit of talent-spotting on their part, when the vast majority of Scottish football thought they had displayed a gross act of folly, or some monumental good fortune?
At the moment the Antonov-22 which the Russians displayed at the International Air Show at Le Bourget last spring, with a gross weight of 500,000 pounds is the world's largest airplane.
Here's a suggestion for just such a responsible message, to be displayed on-screen: "William Hill's machines each collect, on average, a gross win of £920 every week.
That's a gross generalisation, of course.
