Answer:
April 1st -- In Scotland, for occurrence, April Fool's Day is given to parodies including the buttocks and as such is called Taily Day. The butts of these jokes are known as April 'Gowk', another title for cuckoo feathered creature. The roots of the "Kick Me" sign can be followed back to the Scottish observance.
Step-by-step explanation:
Presently, whereas all this fun was being had in Europe, the Scots were creating their possess April Fool's convention, called "April Gowk." This convention relates to the entry to Scotland of the cuckoo, insignia of dolts, comes, so in Scotland the casualty is called a gowk (cuckoo). Presently, what's truly curiously almost April Fools Day in Scotland is that it is really two days. The moment day of entertainment is called Taily Day, a day exclusively committed to tricks including the buttocks. Taily Day's blessing to back descendants is the ever-hilarious "Kick Me" sign.