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baby daddy

noun

Definition of baby daddy

slang
: the biological father of a woman's child especially : one who is not married to or in a long-term, intimate relationship with the child's mother Near the end, a very pregnant Sara watches as her baby daddy cozies up to a new girlfriend. — Jessica Heslam, Boston Herald, 16 Jan. 2010

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First Known Use of baby daddy

1993, in the meaning defined above

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The first known use of baby daddy was in 1993

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