It's when you carelessly aim your
gun in someone's direction without intentionally meaning to do so. Newbie gun owners are often at fault of this, but also when people unholster a firearm they can make the same mistake unknowingly. Muzzle sweeping is violating the second rule of
firearm safety.
T-money whipped out his nine from being strapped in between his belt and boxers and muzzle sweeped us all as we ducked anxiously in fear.