A compromise of two words meshed together to congratulate a graduate of a college, or university students success.
Congraduation, Michael!

I Congraduated Michael on his recent College graduation the other day,
by Sir Scorn September 03, 2010
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Short hand for congratulations on your graduation. Used especially often in China.
Wei; I hear you're graduating next week.
Zhou: Yes.
Wei: Congraduations! You did glate job.
by latefordinner May 20, 2013
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An extremely sarcastic way of saying "congradulations."
Overachiever: I just got a full-ride scholarship to Harvard, a brand new Escalade from my extremely rich father, and a gift certificate for Jamba Juice!
Underachiever: Well congradu-freakin-lations.
by K_Lizzle November 08, 2006
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