neologastated 

The intensely pleasurable sensations generated by using, hearing or coining a new word or phrase, followed closely by a really shitty devastated feeling when you find out said word already exists on urban dictionary.

neologasm+devastated

Alex was neologastated when he found out the term "cock sniff" already existed and he did not, in fact, just invent it.

neologastated by pend1 May 8, 2009