(n.) The action that is considered to be the greatest of any person, organisation or government.
The crowning achievement of elitist is doubling the number of definitions for greek. I suppose he'd like a medal for that. Nice shiney ottoman medal for j00!!!1
by Kung-Fu Jesus May 07, 2004
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When you take a big dump and your man poon retracts causing your turd to be totally reassumed by the butt. Typically happens on accident but causes feelings of great achievement that forces you to to tell everyone you know about it.
"bro, I went to blast a dookie and ended up with a crowning achievement."
by freevageeter May 05, 2017
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