In the middle of the news conference with Mr Maliki, Iraqi television journalist Muntadar al-Zaidi stood up and shouted "this is a goodbye kiss from the Iraqi people, dog," before hurling a shoe at Mr Bush which narrowly missed him.
Showing the soles of shoes to someone is a sign of contempt in Arab culture.
With his second shoe, which the president also managed to dodge, Mr Zaidi said: "This is for the widows and orphans and all those killed in Iraq."
Mr Zaidi, a correspondent for Cairo-based al-Baghdadiya TV, was then wrestled to the ground by security personnel and hauled away.
"If you want the facts, it's a size 10 shoe that he threw," Mr Bush joked afterwards.
Here's the YouTube video:
That was a pretty quick duck for an old guy like Bush. The throw was even better!
The US president is now going to Afghanistan to inspect troops there. He'll have to tighten his abs a bit more to duck from any more surprises thrown at him.
