Smargles
Adapted from the Harry Potter character Luna Lovegood’s nargles, a smargle is the addition of a smurf to the minx mix.

A snargle cheekily messes things around. A smargle leaves a trail of blue behind - usually during the consumption of blue food ie frosting, ice cream, candy. The result is an embarrassing layer of the food around your mouth, making it look like suspicious sexual activity has occurred with a smurf.
“Did you just give a Smurf a BJ?” Looking in the mirror, I saw the blue frosting surrounding my mouth with suspicious dots leading down my chin. F$@king smargles!