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1.
When orgasming so intensely, that a literal substance oozes from your durf or taint. This is often awful smelling and foul.
Fuck man, Billy's mom has wicked crazy durfgasms!

Dude, that chick durfgasmed all over my ballsack and now it smells like 30 year old fish oil!
by Lucas Auraleus, The Chode June 27, 2006