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The event of when the sex between two individuals reaches the point of being so explosive, that it has left obtrusive evidence of the event to the rest of the world, in some cases affecting or even harming those who happen to be innocent bystanders.
"We definitely left a fuckcrater at Robert's house party after she let me sign that shit"

"They must have been had a good one, because that fuckcrater they left took a while for housekeeping clean up."
by TWiggles20 July 15, 2009
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