Definition of "Pizzagate"

(UK, sports, slang) A 2004 controversy around the alleged throwing of food (variously reported as pizza, soup, or coffee) at Manchester United manager Alex Ferguson by an unknown Arsenal player after a match between those two teams.

(slang) A 2016 conspiracy theory claiming that John Podesta, Hillary Clinton's campaign manager, was involved in human trafficking, and alleging the existence of a secret child sex ring associated with the Comet Ping Pong restaurant in Washington, D.C.