Top Definition
When a man ejaculates in a woman's mouth, and the woman passes the semen from her mouth to the woman's mouth sitting next to her. Usually this must be done at least 4 times before a true chain of custody has been established.
Jon: "Who has the chain of custody now?"
Brant:"I can't tell, all of their mouths are closed."
by Sebastion Pico May 09, 2006
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