1. The look one gets on their face after a really stupid person just gets finished talking and turns their back.
2. The look that usually proceeds after a very long and exhausting fake smile.
I can't help but snile at the stupid bitch, she's a waste of carbon!
A facial expression and sound that combines a beaming smile with an audible snort; usually only displayed when exposed to sudden shock or surprise. If drinking, a "snile" can induce projectile nasal discharge.
Jenny sniled boldly when Neil, her manager, split his pants when bending over to retrieve a pencil from the floor.