Moscow(CNN) The Kremlin introduced a new word into the English language Monday: "Putinophobia."
It was in reaction to allegations from the International Consortium of Investigative Journalists and its media partners, who say they obtained a collection of documents revealing -- among other claims -- a clandestine network that connects associates of Russian President Vladimir Putin to hidden wealth in secret offshore companies.
Simply put, the Russian government has denounced the ICIJ revelations, known as the Panama Papers, as a giant smear campaign to discredit Russia's autocratic leader -- an attempt to undermine him ahead of parliamentary elections later this year.
Panama Papers: 7 things to know
The reports, which CNN hasn't been able to independently verify, also directly implicate 12 current or former world leaders. Since their release, the Prime Minister of Iceland, Sigmundur David Gunnlaugsson, has stepped down in the face of accusations of financial impropriety.
But for Kremlin-watchers looking for a similar dethronement, don't hold your breath. The Russian public has become somewhat immune to allegations of corruption concerning its leader and his inner circle.
For years, Putin's critics have played a guessing game about the size of the Russian leader's private fortune.
Stanislav Belkovsky, an outspoken Russian political analyst, came up with a figure of $40 billion in 2007 after claiming Putin controlled significant interests in Russia's oil and gas industries.
It could be as much as $200 billion, Bill Browder -- the CEO of Hermitage Capital Management, formerly Russia's largest foreign investor, and a former Putin supporter -- told CNN's Fareed Zakaria last year.
In fact, there was never much to support such estimates.
As the latest revelation contained in the Panama Papers data leak suggests, hard evidence when it comes to Putin is hard to come by.
Not a single document, his aides reiterate, has Putin's name on it. In fact, the powerful Russian president appears to have very few assets signed in his name.
No, it's the members of Putin's tight-knit inner circle, his friends, former KGB colleagues, and loyal businessmen who the ICIJ report alleges own the luxury property, front the shell companies and bank the money.
READ: Panama Papers: Whose head may roll?
Friends like Sergei Roldugin, a concert cellist from St. Petersburg who, as a young man, introduced Putin to his former wife, Lydmilla, and became godfather to their first daughter, Maria.
For decades, he's been Putin's best pal and, according to the Panama leaks, now appears to front a series of offshore shell companies that have seen hundreds of millions of dollars of Russian loans and lucrative contracts pass through their books.
"Payments are disguised in various ways," the ICIJ reported. "On paper, shares in companies are swapped back and forth in a day. Documents are backdated. Questionable financial penalties are assessed. The rights to multimillion-dollar loans are sold between offshore companies for $1."
Roldugin has not responded to CNN's requests for an interview about the financial dealings and told reporters with the ICIJ that he needed more time to figure out what he wanted to say. But he did play down his wealth in comments to The New York Times. "I've got an apartment, a car, a dacha," he told the newspaper. "I don't have millions."
According to leaked documents, some of the cash was loaned to companies controlled by others close to the Russian leader, raising further concerns about money laundering.
But Putin's name is not on any of the documents. He is the legal owner, it seems, of nothing untoward.
Critics argue that the absence of a legal smoking gun implicating Putin shows how corruption really works in Russia.
When Putin wants to reward his friends, say critics, he does so with favorable bank loans or lucrative government contracts of the kind exposed in the Panama Papers.
When he wants something in return, so the theory goes, they had better deliver or risk the President's goodwill running out. In other words, power is what Putin has accumulated in his years of running Russia. Not cash. He has no use for it.
But the leaks do come at a particularly sensitive time.
Russia is bogged down in its worst recession since Putin came to power in 1999, and the Kremlin has been waging a public campaign against waste, corruption and money laundering.
The Panama revelations are embarrassing at the very least.
READ: Why the Panama Papers is a very big deal
In what might be a bid to head off any wider public criticism, the Russian prosecutor's office has announced it will investigate the individuals "listed" in the Panama leaks to check whether their actions "were legal and corresponded to Russian and international law."
There's no suggestion, though, that Putin himself, or the vast private fortune he may or may not control, will come under the legal spotlight.