It's National Slap A Yank Day on December 23rd.
More on Slap A Yank Day and the other days on the 23rd below.
We detected 1,020 references to national Slap A Yank day on 23rd the December. There were also a total of 24 other national days mentioned including: Selfie, Tulsi Pujan, Signing and Pfeffernusse Day.
The day shown for 'National Slap A Yank Day' is shown as we detected that day mentioned the most out of all the references to national days there were on December the 23rd across social media. Our algorithms examine all of the references to National Days across social media and updates whatnationaldayisit.com hourly, with our homepage displaying the current national day. This crowdsourcing of data method to assess the National Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!