Nutella kiss
The act of dropping a small amount of Nutella onto a piece of furniture (most commonly, computers) and then licking it off.
Dude, I had to give my keyboard the Nutella kiss this morning.
Nutella Kiss
When you eat an unwashed booty and get fecal matter on your mouth, so you violently kiss them on the mouth as revenge for their poor hygiene.
Brad: "I was eating Karen's booty yesterday when I realized I had some fudgy goodness on my mouth so I gave her a nutella kiss as payback!"
Steve: "Serves her right!"
Steve: "Serves her right!"