Top Definition
When two men ejaculate at the same time and put their sperm into a woman. Then they cheer on their sperm to see who will impregnate her first. True results will be finalized 9 months after said event.
Sperm Racing:Justin and Jared came at the same time and put it into Nicole.
GOGOGOGOGOGOGO! YAAAAAAAY! And now...We wait..
by Pheno Sony May 23, 2010

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