1 definition by #swagzilla

Top Definition
X is you, and Y is the person you are referring to. Y will always be one more than you are, no matter what, and is always better, sadly for you.
"I hate Joe so much. He always hits me with the X+1 Rule on the field.... He just always HAS to do it better than me."
by #swagzilla November 16, 2012

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