A crackship between Demyx and Vexen. The two have never interacted in all of Kingdom Hearts except for Kingdom Hearts 3, where the two momentarily shush each other and cover each other's mouths before Vexen recruits Demyx.
VexDem is the embodiment of "Grumpy x Bubbly" and "Idiot x Idiot in process".
The general term applied to the practice of imitating the grammatical and pronunciation rules of another language but inserting English (first language) words. See also Frenchify and Espanify.
When I could not think of the word for "window" during my conversation with the Frenchman, I languified it into "la window."