The line comes from Oklahoma State coach Mike Gundy's press conference on 22 September 2007, after a win over Texas Tech. Angry at a newspaper column about quarterback Bobby Reid, Gundy spent several minutes defending his player and shouted that he was a man and forty years old. The rant was shared widely in the early YouTube era and turned into a lasting sports meme. Shortened clips still circulate because the phrase works far beyond football, as a mock serious defence of pride, age and authority.