But the tweet does more than just hark back to the greatest meme of all time.
It speaks to a wider debate. Is this really a victory for France and the world, amidst the surge of populism and anti-globalisation? Macron may have won with a decisive margin but the number of Le Pen voters should unnerve French liberals.
Macron himself may yet prove to be a disappointment politically, which would make Le Pen a martyr and drive more desperate citizens towards the alt-right.
Is the far right really in decline?
It's true that far right groups like EDL and anti-Islamic Pegida are generally losing membership and power, but they do experience spikes in popularity on the heels of a terrorist attack.