The act of giving someone the most intense orgasm they will ever experience in their entire life.
When you said you were going to give me a spazz attack, I really didn't expect IT to be that f**king incredible!
To be declared when anyone shows themself to be a spazz . You could also say, "WIPEOUT!" Alternatively, "SPAZZ ALERT!"
*I fall down*
my bff: SPAZZ ATTACK!