Time Magazine has more on the fist bump heard around the world, including a look back at the hazy history of the fist bump, which is also known as the ""power five," "fist pound," "knuckle bump," "Quarter Pounder" and "dap.""
For his part, Obama...said the fist bump reflects a marriage that keeps him grounded. "It captures what I love about my wife," he later explained to NBC's Brian Williams. "That for all the hoopla I'm her husband and sometimes we'll do silly things."
Read more here.