It's now basically an excuse for everyone, Irish or not, to get smashed - totally inebriated beyond recognition.
I've opted out of that ritual for many years now. I realized it's sort of like driving nails into your forehead to see what happens.
Not very enlightening.
So according to legend, St. Patrick drove the snakes out of Ireland. I suppose those wriggly little bastards all swam over to the shores of this Capitalistic Cesspool.
Their spawn now inhabit most of the centers of power in the land - Wall Street, Washington, Corporate offices in every freaking nook and cranny in this toasted land.
All I got to say - "Watch your back, brothers and sisters!"