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1.
That feeling of excitement and fever you get when exposed, either visually or auditorily, to Bono being his dangerously sexy self.
I had a massive bonogasm while watching Rattle and Hum last night.
by Sadie, Julie, etc January 04, 2010
 
2.
When you are so enamored of your own self righteous glory that you blow a load in your pants every time you look at yourself in a mirror or think about yourself in the third person.
After a two hour sermon on the evils of sin, Jerry Falwell had a bonogasm after getting a glimpse of himself on the door of his limo.
by Mike Fryberger March 27, 2007