(noun) A person that goes to McDonald's and spends more than $8 for themselves in one visit.
Guy 1: Did you see that guy who went to Mcdonalds and got two Big Macs, a 20 piece nugget, a large fry and a large Diet Coke?! He paid like $14!!

Guy 2: Wow! He's a real McBaller!!!
by the_guy_with_the_banana September 18, 2011
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