Inspired by the widespread Friday afternoon beer sessions in professional working culture, this acronym refers to the first Friday afternoon beer after New Year's eve. NYFAD stands for:
N - New
Y - Year
F - Friday
A - Afternoon
D - Drinks

Beer is replaced with drinks to accommodate people following a wider spectrum of drinks (including non-alcoholic ones).

When you eat dirt for the first time and leave your family to build a shack in the woods