Marble Cake may be used as either a noun or a verb; however, in either context it describes the action of a man anally penetrating either a man or a woman and ejaculating inside of said person. Afterwards the person on the receiving end defecates. If the defecator is a man, he then masturbates into his own feces.
Finally, the resulting mass of feces and ejaculatory fluids is put on a platter and one or both parties partake of the "cake."
This is similar to Felching.
I can't believe you ate that Marble Cake!
Prices shown in USD.
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