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1.
when something is so awesome and amazing that it makes you want to go talk about it all the time. something overly exciting.
Did you see that double rainbow?! It was so spazzgasmic!
by wonderwendy July 27, 2010
 
2.
Random twitching while having an orgasm.
"I laughed when I saw her spazzgasm"
by Erk Erkleton April 15, 2008