<P> Eggs are sometimes thrown at people as a form of protest . High - profile people who have been egged in this manner include: David Cameron, Steve Ballmer, Miloš Zeman, Bronisław Komorowski, Arnold Schwarzenegger, John Prescott, Helmut Kohl, Nick Griffin, David Blaine, Richard Prebble, Ed Miliband, Nigel Farage, John Tsang, Luis Fortuño, Rafael Correa . Irish bank AIB was egged in response to the Irish banking crisis of 2009 . The Chairman of the Ukrainian Parliament was egged by deputies inside the Ukrainian parliament on April 27, 2010 as a protest against a natural gas agreement . During the 2004 Ukrainian presidential election, candidate Viktor Yanukovych was rushed to hospital after he had been hit with an egg (while government officials claimed he was hit by a brick), which became a source of ridicule . The former Brazilian president Luiz Inácio da Silva had eggs and rocks thrown at his bus by protesters while he was doing a visit to southern Brazil . </P> <P> On 1 June 1970, UK Prime Minister Harold Wilson was hit in the face by a raw egg thrown by a young man named Richard Ware, a member of the Young Conservatives . Wilson was visiting Wealdstone Labour Hall in North West London at the time, he quipped: "If they are fighting the cost of living in Harrow, obviously eggs must be cheap enough to throw about . Wilson was campaigning for re-election at the upcoming general election on 18 June 1970, but was unsuccessful in doing so, and was defeated by the Conservative Party led by Edward Heath; who succeeded Wilson as Prime Minister . </P> <P> In Brazil it was common to throw eggs at someone on their birthday, with or without their consent, as a friendly prank among the younger . Usually, wheat flour is also poured on the person's head after the eggs, with the idea of "a cake being made on their heads". This was common in the 80s but not widely performed anymore, with a few exceptions, such as the Guarani FC midfielder José Fernando Fumagalli, that had eggs and wheat flour thrown by his team colleagues in his 40th birthday in 2017, along with his eventual retirement announcement . </P> <P> The tradition originated in the 1980s, in Mexico, where it was common to break "cascarones" (eggshells) on a person's head at their birthday party as a vow of good fortune . The eggs were usually filled with confetti and colored with dye or crayons . </P>

Where did the term egging on come from