Fornafuck, is slang combining the word fornication, with the word fuck. slang for double sex, or double the level of intensity during the sex. originated in California where the term Californication is used often.
"man i heard you guys fornafucking last night! thought you were going to break the bed"

"do you want to fornafuck?"
"i totally feel like fornafucking"
by flushit September 21, 2009
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