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champaign birthday is the birthday when your age matches the day you were born
example: you are born on may 18 your champaign birthday is when you turn 18
girl: its your champaigh birthday in two years
boy: in america you have to be 21 to drink alchohol not 18
girl: not your born may so your "champaign birthday" is when you are 18
by furby1122 May 18, 2009
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