A video appearing to show the Greek finance minister put his finger up at Germany has caused confusion in Germany with claims and counter-claims about whether the footage is actually genuine.
The video has been doing the rounds in Germany since Sunday, when it was broadcast by the Guenther Jauch weekly talk show on Germany's ARD channel.
The minister in question, Mr Varoufakis, who was on the show as a guest, vehemently insisted the footage had been "doctored".
He later tweeted: "Any apology in the offing @GuentherJauch65? For having used a doctored video to silence a conciliatory Greek voice?"
Three days later, it appeared his claim had been verified.
German comedian Jan Boehmermann broadcast a video on his satirical programme Neo Magazin Royale on German public broadcaster ZDF, claiming he was responsible for manipulating the video to include the rude gesture.
"Sorry Mr Varoufakis, we won't do it again," he said.
Now, it appears his claim was itself a fake.
ZDF has issued a reminder to its audience that Neo Magazin Royale is a satirical programme.
In a moment of irony, it tweeted that it would place the warning "careful, satire" on all future broadcasts.
Speculation is now rife over whether the video is in fact genuine.
The hashtag #varoufake has been Germany's top trending topic on Twitter throughout the day.
Mr Varoufakis is seen in the footage giving a speech in Croatia in 2013 on the Greek financial crisis.
He appears to make the offensive gesture while saying Greece should "stick the finger to Germany".
The minister was shown the video during a debate over his country's relationship with the EU powerhouse, which has been the main contributor to Greece's €240bn (£169bn) economic bailout.
Greece and Germany have been at loggerheads since Mr Varoufakis' radical-left Syriza party came to power in January.
It promised to end austerity measures demanded by the EU in exchange for the rescue package.
Mr Varoufakis has been warned he must put forward concrete economic proposals if the country wants to secure funds agreed under a four-month deal to extend the bailout.