There are special days for celebrating every kind of pie, pickle, dogs, cats, flowers, ugly sweaters, secretaries turned administrative assistants, on and on.
Somehow, I don't think this one will catch on in the long term. If it does, that's good and perhaps we need one for men as well.
Thought maybe you meant the ladies would give us something for men's day. Looked it up and there is an international men's day in November. Marking my wife's calendar.