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1.
The act of creating a word and using the word( the word would be retendous too)in presence of someone who believes itself to be a smart-ass with a great vocabulary to later on finding them using that word and then telling them that it is not a real word that is present in a dictionary other than urbandictionary proving that they are just an ass.
Guy annoyed by smart-ass: That party was so retendous!
...hours later...

smart-ass: Man, I had the most retendolous time in *insert random bar here*

Guy annoyed by smart-ass: That is not a real word...

smart-ass: but I heard you say it a few hours ago

Guy annoyed by smart-ass: i just made that word up to prove you are an ass
by toxkapownd September 23, 2010