"Can't stenchon the mélenchon" is an expression used by the candidate to the 2017 french
presidential election, Jean-Luc Mélenchon.
It could has been created on the Jeuxvidéo.com's forum by users to show their preference for Mélenchon rather than Marine Lepen (far right). It has been
inspired by the sentence "can't stump the trump" even if Mélenchon doesn't share the Trump's point of view.
This catchphrase quickly spread on
the internet. Now, it became a slogan for the Mélenchon's party : La France insoumise.