Top definition
The act of holding your arms out like a zombie and moaning like Frankenstein when you ejaculate. Usually performed while the partner is giving oral sex.
I was so busy enjoying her cocksucking, I didn't even notice that I had done a frankenstein cum.. She looked up at me and said "What the fuck was that?"
"Frankenstein cum bitch!!"
by Hyperactive Man September 19, 2007
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