Definitions by st. patricia

HSPD 

Happy St. Patrick's Day! Typically yelled drunk whilst staggering across campus, town, or any other public venue in which it would normally be inappropriate but isn't because it is St. Patrick's Day. Used as an abbreviation as the entire day, not just in wishing someone to celebrate it well.

Someone vomited green beer on my sweater, but I guess that is expected when it is HSPD!

HSPD by st. patricia April 2, 2011