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1.
The event horizon of any gathering (social or private) at which the fun and excitement of the moment is bigger or more exciting than usual.
Guy1: "Dood, that party last night went Full Blown Boner right after you left with that Swamp Donkey. There were so many more hotty-bomb-bodies than guys that some of them ended up hooking up with each other!"

Guy2: "STFU..."
by Uncle Boner May 13, 2011