Abstaining from the consumption of Little Debbies, Twinkies, and other tantalizing sugary snacks between the hours of 3 and 6 pm (after school and before dinner).
When Timmy returned from school he found that Ronny had visciously attacked the Zebra cakes with earnest. Timmy cursed his name, but never the less was forced to make a snackrafice.
A term refering to what the Sewer mutants in Futurama fed the dreaded el chupalibre.
It can also be stated as a snack that you demand as payment for hosting chilling sessions at your house for your lazy friends.
When Jason recieved a call from his friend Matt; he demanded snackrafice be brought to him as payment for the evening.