Top definition
a baby from artificial insemination; a baby whose sex is unknown; a baby of unknown origin; a baby who doesn't yet exist but who will if you buy sperm or find an unsuspecting donor.
I have been to the sperm bank and I am having a whoby!!!

that dude doesn't know it yet but he is my whoby's father
by MeMe Brantford February 09, 2010
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