As the boy outstretched his first, Obama said no and added, “If I start that... ,” His voice then trailed off, CNN reported.

Obama popularised the move last month when he and his wife Michelle bumped fists on the night he formally captured the party’s presidential nomination in his epic battle with Hillary Clinton.

Video of the duo fist bumping became widely popular on the internet, leading the Washington Post to declare it “the first bump heard round the world.’“ Fist bump, however, is commonly identified as a terrorist hand shake. In the June six edition of the Fox’ News America’s pulse, a host while referring to the Obama’s friendly fist bumping reportedly said “A fist bump? A pound? A terrorist fist jab? A gesture everyone seems to interpret differently”.