1 definition by reidthecoolguy
most possibly the most badass name of all time, anyone who wields this name must be a complete bad ass if not they are obligated to change their last name or else another MacArthur will come, an actual badass, and repeatedly kick their ass
Guy: dude see that guy right there he's a MacArthur
Guy 2: i can see, he makes Chuck Norris look like a little bitch
Guy 2: i can see, he makes Chuck Norris look like a little bitch
by reidthecoolguy May 2, 2011